Commit 4168d0d9 authored Feb 14, 2013 by Andy Shevchenko Committed by Vinod Koul Feb 14, 2013

dma: coh901318: avoid unbalanced locking



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>

parent 978c4172

drivers/dma/coh901318_lli.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -61,7 +61,7 @@ coh901318_lli_alloc(struct coh901318_pool *pool, unsigned int len)
		dma_addr_t phy;

		if (len == 0)
		goto err;
		return NULL;

		spin_lock(&pool->lock);