mtd: sst25l, fix lock imbalance

Add an omitted unlock to one sst25l_erase fail path.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index ac7d52b420cc..c2baf3353f84 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -180,8 +180,10 @@ static int sst25l_erase(struct mtd_info *mtd, struct erase_info *instr)
         mutex_lock(&flash->lock);
 
         err = sst25l_wait_till_ready(flash);
-        if (err)
+        if (err) {
+                mutex_unlock(&flash->lock);
                 return err;
+        }
 
         while (addr < end) {
                 err = sst25l_erase_sector(flash, addr);