From mboxrd@z Thu Jan 1 00:00:00 1970 From: andriy.shevchenko@linux.intel.com (Andy Shevchenko) Date: Thu, 14 Feb 2013 11:00:17 +0200 Subject: [PATCH v2 3/6] dma: coh901318: avoid unbalanced locking In-Reply-To: <1360832420-6349-1-git-send-email-andriy.shevchenko@linux.intel.com> References: <1360832420-6349-1-git-send-email-andriy.shevchenko@linux.intel.com> Message-ID: <1360832420-6349-4-git-send-email-andriy.shevchenko@linux.intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org In case the len is 0 we must return without trying to unlock the lock that was not locked. Signed-off-by: Andy Shevchenko Acked-by: Viresh Kumar Cc: Linus Walleij Cc: linux-arm-kernel at lists.infradead.org --- drivers/dma/coh901318_lli.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c index 780e042..fe9cc5e 100644 --- a/drivers/dma/coh901318_lli.c +++ b/drivers/dma/coh901318_lli.c @@ -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); -- 1.7.10.4