blk-throttle: fix unused variable warning with BLK_DEV_THROTTLING_LOW=n
authorJens Axboe <axboe@fb.com>
Thu, 20 Apr 2017 15:41:36 +0000 (09:41 -0600)
committerJens Axboe <axboe@fb.com>
Thu, 20 Apr 2017 15:41:36 +0000 (09:41 -0600)
commit2bc19cd5fdb5ff2c681761e81cc9044eb2ee753a
treeac3c39a2955e7f4414291fb7307b90bab3769005
parent659b3394eb67a5e274d7e7348633b508510a5c8f
blk-throttle: fix unused variable warning with BLK_DEV_THROTTLING_LOW=n

We trigger this warning:

block/blk-throttle.c: In function ‘blk_throtl_bio’:
block/blk-throttle.c:2042:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
  int ret;
      ^~~

since we only assign 'ret' if BLK_DEV_THROTTLING_LOW is off, we never
check it.

Reported-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-throttle.c