1. 10 1月, 2011 23 次提交
  2. 08 1月, 2011 3 次提交
    • D
      input/tc3589x: fix compile error · aa58abc2
      Dan Carpenter 提交于
      There was a semi-colon missing and it broke the compile.
      Signed-off-by: NDan Carpenter <error27@gmail.com>
      Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
      Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      aa58abc2
    • R
      spi/omap: Fix DMA API usage in OMAP MCSPI driver · 07fe0351
      Russell King - ARM Linux 提交于
      Running the latest kernel on the 4430SDP board with DMA API debugging
      enabled results in this:
      
      WARNING: at lib/dma-debug.c:803 check_unmap+0x19c/0x6f0()
      NULL NULL: DMA-API: device driver tries to free DMA memory it has not allocated
      [device address=0x000000008129901a] [size=260 bytes]
      Modules linked in:
      Backtrace:
      [<c003cbe0>] (dump_backtrace+0x0/0x10c) from [<c0278da8>] (dump_stack+0x18/0x1c)
       r7:c1839dc0 r6:c0198578 r5:c0304b17 r4:00000323
      [<c0278d90>] (dump_stack+0x0/0x1c) from [<c005b158>] (warn_slowpath_common+0x58/0x70)
      [<c005b100>] (warn_slowpath_common+0x0/0x70) from [<c005b214>] (warn_slowpath_fmt+0x38/0x40)
       r8:c1839e40 r7:00000000 r6:00000104 r5:00000000 r4:8129901a
      [<c005b1dc>] (warn_slowpath_fmt+0x0/0x40) from [<c0198578>] (check_unmap+0x19c/0x6f0)
       r3:c03110de r2:c0304e6b
      [<c01983dc>] (check_unmap+0x0/0x6f0) from [<c0198cd8>] (debug_dma_unmap_page+0x74/0x80)
      [<c0198c64>] (debug_dma_unmap_page+0x0/0x80) from [<c01d5ad8>] (omap2_mcspi_work+0x514/0xbf0)
      [<c01d55c4>] (omap2_mcspi_work+0x0/0xbf0) from [<c006dfb0>] (process_one_work+0x294/0x400)
      [<c006dd1c>] (process_one_work+0x0/0x400) from [<c006e50c>] (worker_thread+0x220/0x3f8)
      [<c006e2ec>] (worker_thread+0x0/0x3f8) from [<c00738d0>] (kthread+0x88/0x90)
      [<c0073848>] (kthread+0x0/0x90) from [<c005e924>] (do_exit+0x0/0x5fc)
       r7:00000013 r6:c005e924 r5:c0073848 r4:c1829ee0
      ---[ end trace 1b75b31a2719ed20 ]---
      
      I've no idea why this driver uses NULL for dma_unmap_single instead of
      the &spi->dev that is laying around just waiting to be used in that
      function - but it's an easy fix.
      
      Also replace this comment with a FIXME comment:
                      /* Do DMA mapping "early" for better error reporting and
                       * dcache use.  Note that if dma_unmap_single() ever starts
                       * to do real work on ARM, we'd need to clean up mappings
                       * for previous transfers on *ALL* exits of this loop...
                       */
      as the comment is not true - we do work in dma_unmap() functions,
      particularly on ARMv6 and above.  I've corrected the existing unmap
      functions but if any others are required they must be added ASAP.
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      Acked-by: NTony Lindgren <tony@atomide.com>
      Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      07fe0351
    • R
      spi/imx: correct the test on platform_get_irq() return value · 73575938
      Richard Genoud 提交于
      The test "if (spi_imx->irq <= 0)" is not testing the IRQ value, but
      the return value of platform_get_irq().  As platform_get_irq() can
      return an error (-ENXIO) or the IRQ value it found, the test should be
      "if (spi_imx->irq < 0)"
      
      [grant.likely: Note: In general, Linux irq number 0 should also mean
      no irq, but arm still allows devices to be assigned 0, and the imx
      platform uses 0 for one of the spi devices, so this patch is needed
      for the device to work]
      Signed-off-by: NRichard Genoud <richard.genoud@gmail.com>
      Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      73575938
  3. 07 1月, 2011 14 次提交