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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2013-02-14 11:00:17 +0200
committerVinod Koul <vinod.koul@intel.com>2013-02-14 20:00:53 +0530
commit4168d0d9d304f184f786b1f00750557b8e09453c (patch)
tree7385fb072673f5934cb08f79faeecc9829a32674 /drivers/dma
parent978c4172af48f0adc082f8b1d94acb817d947730 (diff)
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>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/coh901318_lli.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index 780e0429b38c..fe9cc5eeddae 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);