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vfs: add missing blkdev_put() in get_tree_bdev()

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Is there are a couple of missing blkdev_put() in get_tree_bdev()?

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Ian Kent 2019-10-02 17:56:33 +08:00 • committed by Al Viro
parent 33f37c6488
commit 6fcf0c72e4
1 changed files with 4 additions and 1 deletions
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5
fs/super.c
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@ -1296,6 +1296,7 @@ int get_tree_bdev(struct fs_context *fc,
mutex_lock(&bdev->bd_fsfreeze_mutex); mutex_lock(&bdev->bd_fsfreeze_mutex);
if (bdev->bd_fsfreeze_count > 0) { if (bdev->bd_fsfreeze_count > 0) {
mutex_unlock(&bdev->bd_fsfreeze_mutex); mutex_unlock(&bdev->bd_fsfreeze_mutex);
blkdev_put(bdev, mode);
warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev); warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev);
return -EBUSY; return -EBUSY;
} }
@ -1304,8 +1305,10 @@ int get_tree_bdev(struct fs_context *fc,
fc->sget_key = bdev; fc->sget_key = bdev;
s = sget_fc(fc, test_bdev_super_fc, set_bdev_super_fc); s = sget_fc(fc, test_bdev_super_fc, set_bdev_super_fc);
mutex_unlock(&bdev->bd_fsfreeze_mutex); mutex_unlock(&bdev->bd_fsfreeze_mutex);
if (IS_ERR(s)) if (IS_ERR(s)) {
blkdev_put(bdev, mode);
return PTR_ERR(s); return PTR_ERR(s);
}
if (s->s_root) { if (s->s_root) {
/* Don't summarily change the RO/RW state. */ /* Don't summarily change the RO/RW state. */