1. 09 9月, 2008 1 次提交
  2. 23 7月, 2008 3 次提交
  3. 25 4月, 2008 1 次提交
  4. 02 2月, 2008 3 次提交
    • A
      USB: usb_serial_console: allocate fake tty and termios before calling driver open() method · c87d6a4f
      Aristeu Rozanski 提交于
      The usb serial method set_termios() is called for the first time from
      open() method in order to set up the termios structure with the default
      device's settings, ignoring the current settings. Once it's initialized,
      the next set_termios() calls will update the device with the
      tty->termios settings.
      Currently USB serial console code calls the driver open() method without
      a tty and after that will allocate a fake tty and termios so the command
      line arguments can be applied to the device
      (console=ttyUSB0,115200,...). This makes the driver overwrite the
      termios with the default settings and not applying the command line
      options.
      
      This patch changes usb_console_setup() to allocate the fake tty and
      termios before the open() method is called.
      
      Tested successfully with a pl2303
      Signed-off-by: NAristeu Rozanski <arozansk@redhat.com>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      
      c87d6a4f
    • A
      USB: usb_serial: clean tty reference in the last close · 9a6b1efa
      Aristeu Rozanski 提交于
      When a usb serial adapter is used as console, the usb serial console
      driver bumps the open_count on the port struct used but doesn't attach
      a real tty to it (only a fake one temporaly). If this port is opened later
      using the regular character device interface, the open method won't
      initialize the port, which is the expected, and will receive a brand new
      tty struct created by tty layer, which will be stored in port->tty.
      
      When the last close is issued, open_count won't be 0 because of the
      console usage and the port->tty will still contain the old tty value. This
      is the last ttyUSB<n> close so the allocated tty will be freed by the
      tty layer. The usb_serial and usb_serial_port are still in use by the
      console, so port_free() won't be called (serial_close() ->
      usb_serial_put() -> destroy_serial() -> port_free()), so the scheduled
      work (port->work, usb_serial_port_work()) will still run. And
      usb_serial_port_work() does:
      (...)
              tty = port->tty;
              if (!tty)
                      return;
      
              tty_wakeup(tty);
      which causes (manually copied):
      
      Faulting instruction address: 0x6b6b6b68
      Oops: Kernel access of bad area, sig: 11 [#1]
      PREEMPT PowerMac
      Modules linked in: binfmt_misc ipv6 nfs lockd nfs_acl sunrpc dm_snapshot dm_mirror dm_mod hfsplus uinput ams input_polldev genrtc cpufreq_powersave i2c_powermac therm_adt746x snd_aoa_codec_tas snd_aoa_fabric_layout snd_aoa joydev snd_aoa_i2sbus snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc pmac_zilog serial_core evdev ide_cd cdrom snd appletouch soundcore snd_aoa_soundbus bcm43xx firmware_class usbhid ieee80211softmac ff_memless firewire_ohci firewire_core ieee80211 ieee80211_crypt crc_itu_t sungem sungem_phy uninorth_agp agpart ssb
      NIP: 6b6b6b68 LR: c01b2108 CTR: 6b6b6b6b
      REGS: c106de80 TRAP: 0400   Not tainted  (2.6.24-rc2)
      MSR: 40009032 <EE,ME,IR,DR>  CR: 82004024  XER: 00000000
      TASK = c106b4c0[5] 'events/0' THREAD: c106c000
      GPR00: 6b6b6b6b c106df30 c106b4c0 c2d613a0 00009032 00000001 00001a00 00000001
      GPR08: 00000008 00000000 00000000 c106c000 42004028 00000000 016ffbe0 0171a724
      GPR16: 016ffcf4 00240e24 00240e70 016fee68 016ff9a4 c03046c4 c0327f50 c03046fc
      GPR24: c106b6b9 c106b4c0 c101d610 c106c000 c02160fc c1eac1dc c2d613ac c2d613a0
      NIP [6b6b6b68] 0x6b6b6b68
      LR [c01b2108] tty_wakeup+0x6c/0x9c
      Call Trace:
      [c106df30] [c01b20e8] tty_wakeup+0x4c/0x9c (unreliable)
      [c106df40] [c0216138] usb_serial_port_work+0x3c/0x78
      [c106df50] [c00432e8] run_workqueue+0xc4/0x15c
      [c106df90] [c0043798] worker_thread+0xa0/0x124
      [c106dfd0] [c0048224] kthread+0x48/0x84
      [c106dff0] [c00129bc] kernel_thread+0x44/0x60
      Instruction dump:
      XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
      XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
      Slab corruption: size-2048 start=c2d613a0, len=2048
      Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
      Last user: [<c01b16d8>](release_one_tty+0xbc/0xf4)
      050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
      Prev obj: start=c2d60b88, len=2048
      Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
      Last user: [<c00f30ec>](show_stat+0x410/0x428)
      000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
      010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
      
      This patch avoids this, clearing port->tty considering if the port is
      used as serial console or not
      Signed-off-by: NAristeu Rozanski <arozansk@redhat.com>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      
      9a6b1efa
    • A
      USB: usb_serial_console: fix command line parsing · 27680d23
      Aristeu Rozanski 提交于
      Currently usb serial console support ignores the device and always use
      ttyUSB0.
      Signed-off-by: NAristeu Rozanski <arozansk@redhat.com>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      
      27680d23
  5. 26 10月, 2007 1 次提交
  6. 09 12月, 2006 1 次提交
    • A
      [PATCH] tty: switch to ktermios · 606d099c
      Alan Cox 提交于
      This is the grungy swap all the occurrences in the right places patch that
      goes with the updates.  At this point we have the same functionality as
      before (except that sgttyb() returns speeds not zero) and are ready to
      begin turning new stuff on providing nobody reports lots of bugs
      
      If you are a tty driver author converting an out of tree driver the only
      impact should be termios->ktermios name changes for the speed/property
      setting functions from your upper layers.
      
      If you are implementing your own TCGETS function before then your driver
      was broken already and its about to get a whole lot more painful for you so
      please fix it 8)
      
      Also fill in c_ispeed/ospeed on init for most devices, although the current
      code will do this for you anyway but I'd like eventually to lose that extra
      paranoia
      
      [akpm@osdl.org: bluetooth fix]
      [mp3@de.ibm.com: sclp fix]
      [mp3@de.ibm.com: warning fix for tty3270]
      [hugh@veritas.com: fix tty_ioctl powerpc build]
      [jdike@addtoit.com: uml: fix ->set_termios declaration]
      Signed-off-by: NAlan Cox <alan@redhat.com>
      Signed-off-by: NMartin Peschke <mp3@de.ibm.com>
      Acked-by: NPeter Oberparleiter <oberpar@de.ibm.com>
      Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
      Signed-off-by: NHugh Dickins <hugh@veritas.com>
      Signed-off-by: NJeff Dike <jdike@addtoit.com>
      Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      606d099c
  7. 02 12月, 2006 1 次提交
  8. 13 7月, 2006 1 次提交
  9. 01 7月, 2006 1 次提交
  10. 22 6月, 2006 2 次提交
  11. 15 4月, 2006 1 次提交
  12. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4