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authorAsai Thambi S P <asamymuthupa@micron.com>2012-04-16 21:27:55 +0200
committerJens Axboe <axboe@kernel.dk>2012-05-11 16:42:14 +0200
commita09ba13eefb155a00d8d50008a0c0a2406985ddd (patch)
tree1afe2bddb155f43ac9cfbad623aa6550cc4d4e84 /drivers/block/mtip32xx
parentd88a440eddf288c967daed827147e1121c2ab6b5 (diff)
mtip32xx: release the semaphore on an error path
Release the semaphore in an error path in mtip_hw_get_scatterlist(). This fixes the smatch warning inconsistent returns. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/mtip32xx')
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 00f9fc992090..304000c3d433 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2510,8 +2510,10 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
up(&dd->port->cmd_slot);
return NULL;
}
- if (unlikely(*tag < 0))
+ if (unlikely(*tag < 0)) {
+ up(&dd->port->cmd_slot);
return NULL;
+ }
return dd->port->commands[*tag].sg;
}