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| author | Shimoda, Yoshihiro <yoshihiro.shimoda.uh@renesas.com> | 2013-08-27 11:15:09 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-08-27 15:55:41 +0100 |
| commit | 8d4d08ce8319ae26227c4dd558405963c14c2037 (patch) | |
| tree | 4213a4a7e5d68ca08b92e9523efbb2bc1b20d8ac /drivers/spi | |
| parent | e2b0509908aa5e874a1837a733422b6e8b8502b8 (diff) | |
| download | linux-stable-8d4d08ce8319ae26227c4dd558405963c14c2037.tar.gz linux-stable-8d4d08ce8319ae26227c4dd558405963c14c2037.tar.bz2 linux-stable-8d4d08ce8319ae26227c4dd558405963c14c2037.zip | |
spi: spi-rspi: fix inconsistent spin_lock_irqsave
This patch fixes the following Smatch warning:
CHECK drivers/spi/spi-rspi.c
drivers/spi/spi-rspi.c:606 rspi_work() warn: inconsistent returns spin_lock:&rspi->lock: locked (602) unlocked (606)
drivers/spi/spi-rspi.c:606 rspi_work() warn: inconsistent returns irqsave:flags: locked (602) unlocked (606)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-rspi.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 5f122d9d2063..00c32320dce8 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -564,8 +564,12 @@ static void rspi_work(struct work_struct *work) unsigned long flags; int ret; - spin_lock_irqsave(&rspi->lock, flags); - while (!list_empty(&rspi->queue)) { + while (1) { + spin_lock_irqsave(&rspi->lock, flags); + if (list_empty(&rspi->queue)) { + spin_unlock_irqrestore(&rspi->lock, flags); + break; + } mesg = list_entry(rspi->queue.next, struct spi_message, queue); list_del_init(&mesg->queue); spin_unlock_irqrestore(&rspi->lock, flags); @@ -595,8 +599,6 @@ static void rspi_work(struct work_struct *work) mesg->status = 0; mesg->complete(mesg->context); - - spin_lock_irqsave(&rspi->lock, flags); } return; |