block: cleanup error handling in sg_io
Make sure we always clean up through the out label and just have
a single place to put the request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 51bf515..ba8706f 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -279,7 +279,6 @@
r = blk_rq_unmap_user(bio);
if (!ret)
ret = r;
- blk_put_request(rq);
return ret;
}
@@ -322,10 +321,9 @@
return -ENOMEM;
blk_rq_set_block_pc(rq);
- if (blk_fill_sghdr_rq(q, rq, hdr, mode)) {
- blk_put_request(rq);
- return -EFAULT;
- }
+ ret = -EFAULT;
+ if (blk_fill_sghdr_rq(q, rq, hdr, mode))
+ goto out;
if (hdr->iovec_count) {
size_t iov_data_len;
@@ -376,7 +374,7 @@
hdr->duration = jiffies_to_msecs(jiffies - start_time);
- return blk_complete_sghdr_rq(rq, hdr, bio);
+ ret = blk_complete_sghdr_rq(rq, hdr, bio);
out:
blk_put_request(rq);
return ret;