- 20 10月, 2010 1 次提交
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由 Julia Lawall 提交于
In this code, 0 is returned on memory allocation failure, even though other failures return -ENOMEM or other similar values. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ret; expression x,e1,e2,e3; @@ ret = 0 ... when != ret = e1 *x = \(kmalloc\|kcalloc\|kzalloc\)(...) ... when != ret = e2 if (x == NULL) { ... when != ret = e3 return ret; } // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> To: Pat Gefre <pfg@sgi.com> Cc: kernel-janitors@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1704/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 02 10月, 2010 2 次提交
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由 Andrew Morton 提交于
sparc64 allmodconfig: drivers/serial/mrst_max3110.c: In function `serial_m3110_startup': drivers/serial/mrst_max3110.c:470: error: `IRQ_TYPE_EDGE_FALLING' undeclared (first use in this function) Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
alpha allmodconfig: drivers/serial/mfd.c:144: error: implicit declaration of function 'kzalloc' drivers/serial/mfd.c:144: warning: assignment makes pointer from integer without a cast Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 21 9月, 2010 2 次提交
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由 Feng Tang 提交于
Medfield HSU driver deal with 4 pci devices(3 uart ports + 1 dma controller), so in pci remove func, we need handle them differently Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mika Westerberg 提交于
Commit d87d9b7d ("tty: serial - fix tty referencing in set_ldisc") changed set_ldisc to take ldisc number as parameter. This patch fixes AMBA PL010 driver according the new prototype. Signed-off-by: NMika Westerberg <mika.westerberg@iki.fi> Cc: Alan Cox <alan@linux.intel.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 15 9月, 2010 1 次提交
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由 Dominik Brodowski 提交于
We shouldn't overwrite pre-set values, and we should also set the port address to the beginning, and not the end of the 8-port range. CC: linux-serial@vger.kernel.org Reported-by: NKomuro <komurojun-mbn@nifty.com> Hardware-supplied-by: NJochen Frieling <j.frieling@pengutronix.de> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
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- 09 9月, 2010 1 次提交
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由 Julia Lawall 提交于
Add a call to of_node_put in the error handling code following a call to of_find_compatible_node. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E,E1; statement S; @@ *x = (of_find_node_by_path |of_find_node_by_name |of_find_node_by_phandle |of_get_parent |of_get_next_parent |of_get_next_child |of_find_compatible_node |of_match_node )(...); ... if (x == NULL) S <... when != x = E *if (...) { ... when != of_node_put(x) when != if (...) { ... of_node_put(x); ... } ( return <+...x...+>; | * return ...; ) } ...> of_node_put(x); // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 04 9月, 2010 1 次提交
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由 Sonic Zhang 提交于
The large cleanup/rewrite of resources in commit ccf68e59 accidentally reverted an earlier fix in commit a19e8b20. So restore it here. Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NMike Frysinger <vapier@gentoo.org> Cc: stable <stable@kernel.org> [.34 and newer] Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 24 8月, 2010 2 次提交
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由 Kulikov Vasiliy 提交于
As copy_*_user() calls access_ok() it should not be called explicitly. Signed-off-by: NKulikov Vasiliy <segooon@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Luck, Tony 提交于
Device addresses are usually printed in hex. Signed-off-by: NTony Luck <tony.luck@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 21 8月, 2010 1 次提交
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由 Dmitry Torokhov 提交于
Sysrq operations do not accept tty argument anymore so no need to pass it to us. [Stephen Rothwell <sfr@canb.auug.org.au>: fix build breakage in drm code caused by sysrq using bool but not including linux/types.h] [Sachin Sant <sachinp@in.ibm.com>: fix build breakage in s390 keyboadr driver] Acked-by: NAlan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: NJason Wessel <jason.wessel@windriver.com> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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- 17 8月, 2010 2 次提交
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由 Grant Likely 提交于
This patch fixes missing includes from a number of .c files because the code (wrongfully) depended on prom.h including them. The include of linux/of_address.h was removed in microblaze prom.h in commit "of/address: Clean up function declarations" (sha1 id 22ae782f), but not fixed in some callers. This patch fixes them up. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 David S. Miller 提交于
If a video head and keyboard are hooked up, specifying "console=ttyS0" or similar to use a serial console will not work properly. The key issue is that we must register all serial console capable devices with register_console(), otherwise the command line specified device won't be found. The sun serial drivers would only register themselves as console devices if the OpenFirmware specified console device node matched. To fix this part we now unconditionally get the serial console register by setting serial_drv->cons always. Secondarily we must not add_preferred_console() using the firmware provided console setting if the user gaven an override on the kernel command line using "console=" The "primary framebuffer" matching logic was always triggering o n openfirmware device node match, make it not when a command line override was given. Reported-by: NFrans Pop <elendil@planet.nl> Tested-by: NFrans Pop <elendil@planet.nl> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 8月, 2010 27 次提交
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由 Philippe Langlais 提交于
UART Features extract from STEricsson U6715 data-sheet (arm926 SoC for mobile phone): * Fully compatible with industry standard 16C550 and 16C450 from various manufacturers * RX and TX 64 byte FIFO reduces CPU interrupts * Full double buffering * Modem control signals include CTS, RTS, (and DSR, DTR on UART1 only) * Automatic baud rate selection * Manual or automatic RTS/CTS smart hardware flow control * Programmable serial characteristics: – Baud rate generation (50 to 3.25M baud) – 5, 6, 7 or 8-bit characters – Even, odd or no-parity bit generation and detection – 1, 1.5 or 2 stop bit generation * Independent control of transmit, receive, line status, data set interrupts and FIFOs * Full status-reporting capabilities * Separate DMA signaling for RX and TX * Timed interrupt to spread receive interrupt on known duration * DMA time-out interrupt to allow detection of end of reception * Carkit pulse coding and decoding compliant with USB carkit control interface [40] In 16550A auto-configuration, if the fifo size is 64 then it's an U6 16550A port Add set_termios hook & export serial8250_do_set_termios to change uart clock following baudrate Signed-off-by: NPhilippe Langlais <philippe.langlais@stericsson.com> Acked-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
Because of the way gpiolib works we actually need to ifdef this in our header file Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Feng Tang 提交于
Also add check for dma controller or the uart ports. Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Feng Tang 提交于
Major changes are: * refine the comments in the driver * remove unused member from structure "hsu_port" * extended spin_lock protoction for dma mode in port_irq() Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Feng Tang 提交于
A general problem for uart rx dma channel is you never know when and how much data will be received, so usually preset it a DMA descriptor with a big size, and rely on DMA RX timeout IRQ to know there is some data in rx channel. For a RX data size of multiple of MOTSR, there will be no timeout IRQ issued, thus OS will never be notified about that. This is a work around for that, current timer frequency is 5 times per second, it should vary according to the baud rate When future silicon version fix the problem, this workaround need be removed Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Feng Tang 提交于
This is a PCI & UART driver, which suppors both PIO and DMA mode UART operation. It has 3 identical UART ports and one internal DMA controller. Current FW will export 4 pci devices for hsu: 3 uart ports and 1 dma controller, each has one IRQ line. And we need to discuss the device model, one PCI device covering whole HSU should be a better model, but there is a problem of how to export the 4 IRQs info Current driver set the highest baud rate to 2746800bps, which is easy to scale down to 115200/230400.... To suport higher baud rate, we need add special process, change DLAB/DLH/PS/DIV/MUL registers all together. 921600 is the highest baud rate that has been tested with Bluetooth modem connected to HSU port 0. Will test more when there is right BT firmware. Current version contains several work around for A0's Silicon bugs Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Lytochkin Boris 提交于
Signed-off-by: NLytochkin Boris <lytboris@gmail.com> Tested-by: NLytochkin Boris <lytboris@gmail.com> Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Christoph Egger 提交于
(ALMA_ANS | DRAGONIXVZ | M68EZ328ADS) doesn't exist in Kconfig, therefore remove all references to it from the source code. Signed-off-by: NChristoph Egger <siccegge@cs.fau.de> Acked-by: NGreg Ungerer <gerg@uclinux.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Richard Röjfors 提交于
Move the probe and remove functions to the devinit and devexit sections. Signed-off-by: NRichard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Samium Gromoff 提交于
Provide MMIO32 support in 8250_early (aka earlycon) [randy.dunlap@oracle.com: fix printk format warnings] [akpm@linux-foundation.org: fix printk args some more] Signed-off-by: NSamium Gromoff <_deepfire@feelingofgreen.ru> Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Yury Georgievskiy 提交于
Don't take the port spinlock in uart functions where the serial core already takes care of locking/unlocking them. The code would actually lock up on architectures where spinlocks are implemented. Also protect calling mcf_rx_chars/mcf_tx_chars in the interrupt handler by the port spinlock and use IRQ_RETVAL to return from isr. [akpm@linux-foundation.org: make irq-handler return value more explicit] Signed-off-by: NYury Georgievskiy <ygeorgie@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: NGreg Ungerer <gerg@uclinux.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Claudio Scordino 提交于
Fix several issues related to the RS485 interface: - It adds the flag SER_RS485_RTS_BEFORE_SEND that was missing from the serial_rs485 structure (even if "delay_rts_before_send" was existing) - It adds a further "delay_rts_after_send" field for those drivers that can have a delay after send (e.g., atmel_serial) - It fixes the usage of the structure in the atmel_serial driver (where "delay_rts_before_send" should be used instead of "delay_rts_after_send"). Signed-off-by: NClaudio Scordino <claudio@evidence.eu.com> Signed-off-by: NBernhard Roth <br@pwrnet.de> Cc: Philippe De Muyter <phdm@macqel.be> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Andrew Morton 提交于
ERROR: code indent should use tabs where possible #32: FILE: drivers/serial/altera_uart.c:397: +^I ALTERA_UART_STATUS_TRDY_MSK))$ total: 1 errors, 0 warnings, 39 lines checked ./patches/altera_uart-simplify-altera_uart_console_putc.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches This fix got lost when someone merged "altera_uart: simplify altera_uart_console_putc()". Please don't lose fixes. Please don't write of mere patches which have trivial checkpatch errors. Cc: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Kulikov Vasiliy 提交于
Use %p instead of %08x in printk(). Signed-off-by: NKulikov Vasiliy <segooon@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
At the moment there is only one platform type supported and there is is hard wired, but with these changes the infrastructure is now there for anyone else to provide methods for their hardware. Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 jianwei.yang 提交于
This device is used by some of the Intel MID platforms. It's not similar enough to the MAX3100 to use the same driver. At this point the driver is specific to the platform and not generalised. We will fix that later. Signed-off-by: Njianwei.yang <jianwei.yang@intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
The ldisc number now gets passed into ->set_ldisc. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
Most tty drivers may block while opening a device. Since this possibly depends on another thread closing it first and both threads may need the BTM, we need to release it here. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
Some wait_until_sent versions require the big tty mutex, others don't and some callers of wait_until_sent already hold it while other don't. That leads to recursive use of the BTM in these functions, which we're trying to get rid of. This turns all cleans up the locking there so that the driver's wait_until_sent function never takes the BTM itself if it is already called with that lock held. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
Calling wait_event_interruptible implicitly releases the BKL when it sleeps, but we need to do this explcitly when we have converted it to a mutex. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
As a preparation for replacing the big kernel lock in the TTY layer, wrap all the callers in new macros tty_lock, tty_lock_nested and tty_unlock. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Arnd Bergmann 提交于
Move termios initialization in open into uart_dtr_rts to make sure it always gets called when necessary. Based on a suggestion from Alan Cox. Alan writes: Ok this sort of makes sense. Something isn't getting initialised and both getty and minicom will do a termios set which is sorting it out. This is occurring because the generic block_til_ready sets ASYNCB_NORMAL_ACTIVE so the termios updating gets skipped. This patch should cure it and then we can think about doing it more elegantly by getting the serial layer to use tty_port_open, kfifo and the like and removing the tons of repeated crap in all the drivers. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Reported-by: NTony Luck <tony.luck@intel.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
Our code now rather closely resembles the helper, so switch to it. Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
The port mutex protects port->tty, but these paths never need to walk from port->tty. They do need the low level lock as the API expects that but they already also take it. Thus we can drop the extra mutex lock calls here. Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
We can make this the same as the ones that will be needed by the tty_port helper logic that we want to move to but still call them from the existing code base. Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
We want to push the lock/unlock into the helper functions so that we can prepare to move to using the tty_port helper. The expansion initially comes out a bit ugly but its worth the temporary expansion IMHO just so we can produce a nice testable series of changes. Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alan Cox 提交于
Pass down the ldisc number so that the drivers don't have to peek into the tty object themselves. This lets us get rid of another case of back referencing port to tty which we don't want (because of races versus hangup/close). Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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