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dma: coh901318: avoid unbalanced locking
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Thu, 14 Feb 2013 09:00:17 +0000 (11:00 +0200)
committerVinod Koul <vinod.koul@intel.com>
Thu, 14 Feb 2013 14:30:53 +0000 (20:00 +0530)
In case the len is 0 we must return without trying to unlock the lock that was
not locked.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

No differences found
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