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  1. 29 11月, 2012 1 次提交
  3. 22 9月, 2012 1 次提交
  5. 18 9月, 2012 5 次提交
  7. 14 9月, 2012 1 次提交
  9. 01 9月, 2012 1 次提交
  11. 14 6月, 2012 1 次提交
    • J
      DMA: PL330: Fix racy mutex unlock · fdec53d5
      由 Javi Merino 提交于 
      pl330_update() stores a pointer to the thrd->req that finished, which
contains a pointer to the corresponding pl330_req.  This is done with
the pl330_lock held.  Then, it iterates through the req_done list,
calling the callback for each of the requests that are done.  The
problem is that the driver releases the lock before calling the
callback for each of the callbacks.  pl330_submit_req() running in
another processor can then acquire the lock and insert another request
in one of the thrd->req that hasn't been processed yet, replacing the
pointer to pl330_req there.  When the callback returns in
pl330_update() and the next rqdone is popped from the list, it
dereferences the pl330_req pointer to the just scheduled pl330_req,
instead of the one that has finished, calling pl330 with the wrong r.

This patch fixes this by storing the pointer to pl330_req directly in
the list.
Signed-off-by: NJavi Merino <javi.merino@arm.com>
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Acked-by: NJassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
      fdec53d5
  13. 07 6月, 2012 2 次提交
  15. 11 5月, 2012 2 次提交
  17. 25 4月, 2012 1 次提交
    • O
      dma: pl330: fix a couple of compilation warnings · c8473828
      由 Olof Johansson 提交于 
      Move a couple of tests and do a minor refactor to avoid:

drivers/dma/pl330.c: In function 'pl330_probe':
drivers/dma/pl330.c:2929:215: warning: comparison of distinct pointer types lacks a cast [enabled by default]
drivers/dma/pl330.c: In function 'pl330_tasklet':
drivers/dma/pl330.c:2250:8: warning: 'pch' may be used uninitialized in this function [-Wuninitialized]
drivers/dma/pl330.c:2228:25: note: 'pch' was declared here
drivers/dma/pl330.c:2277:130: warning: 'pch' may be used uninitialized in this function [-Wuninitialized]
drivers/dma/pl330.c:2260:25: note: 'pch' was declared here
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
      c8473828
  19. 21 3月, 2012 1 次提交
  21. 17 3月, 2012 1 次提交
  23. 13 3月, 2012 7 次提交
  25. 08 3月, 2012 3 次提交
  27. 31 1月, 2012 1 次提交
    • J
      drivers/dma/pl330.c: add missing iounmap · 7bec78e0
      由 Julia Lawall 提交于 
      Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.

This patch additionally adds calls to clk_disable and clk_put.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
    when != iounmap(e)
*if (...)
   { ... when != iounmap(e)
     return ...; }
... when any
iounmap(e);
// </smpl>
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
      7bec78e0
  29. 23 12月, 2011 3 次提交
  31. 08 12月, 2011 1 次提交
  33. 22 11月, 2011 1 次提交
  35. 10 11月, 2011 1 次提交
  37. 27 10月, 2011 1 次提交
  39. 20 9月, 2011 1 次提交
  41. 14 9月, 2011 4 次提交