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| author | Tejun Heo <tj@kernel.org> | 2011-12-14 00:33:38 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2011-12-14 00:33:38 +0100 |
| commit | 09ac46c429464c919d04bb737b27edd84d944f02 (patch) | |
| tree | 0fb3b7344ead06d08dbd77470445821817c439b7 /block/bsg.c | |
| parent | 6e736be7f282fff705db7c34a15313281b372a76 (diff) | |
| download | lwn-09ac46c429464c919d04bb737b27edd84d944f02.tar.gz lwn-09ac46c429464c919d04bb737b27edd84d944f02.zip | |
block: misc updates to blk_get_queue()
* blk_get_queue() is peculiar in that it returns 0 on success and 1 on
failure instead of 0 / -errno or boolean. Update it such that it
returns %true on success and %false on failure.
* Make sure the caller checks for the return value.
* Separate out __blk_get_queue() which doesn't check whether @q is
dead and put it in blk.h. This will be used later.
This patch doesn't introduce any functional changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bsg.c')
| -rw-r--r-- | block/bsg.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/block/bsg.c b/block/bsg.c index 702f1316bb8f..167d586cece6 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -769,12 +769,10 @@ static struct bsg_device *bsg_add_device(struct inode *inode, struct file *file) { struct bsg_device *bd; - int ret; #ifdef BSG_DEBUG unsigned char buf[32]; #endif - ret = blk_get_queue(rq); - if (ret) + if (!blk_get_queue(rq)) return ERR_PTR(-ENXIO); bd = bsg_alloc_device(); |