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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2013-02-14 11:00:17 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-02-14 20:00:53 +0530 |
| commit | 4168d0d9d304f184f786b1f00750557b8e09453c (patch) | |
| tree | 7385fb072673f5934cb08f79faeecc9829a32674 /drivers/dma | |
| parent | 978c4172af48f0adc082f8b1d94acb817d947730 (diff) | |
| download | linux-stable-4168d0d9d304f184f786b1f00750557b8e09453c.tar.gz linux-stable-4168d0d9d304f184f786b1f00750557b8e09453c.tar.bz2 linux-stable-4168d0d9d304f184f786b1f00750557b8e09453c.zip | |
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.c | 2 |
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); |