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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-13 12:26:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-13 12:26:18 -0700
commit23c2c8c6fa325939f95d840f54bfdec3cb76906c (patch)
tree9dc16c7c575f8492de8f37d70c5c3c3eb13e8aea /fs/btrfs/sysfs.c
parent69307ade14de7d9e9b14961ae7a6168e7165b6ab (diff)
parentc57dd1f2f6a7cd1bb61802344f59ccdc5278c983 (diff)
Merge tag 'for-5.9-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull more btrfs updates from David Sterba: "One minor update, the rest are fixes that have arrived a bit late for the first batch. There are also some recent fixes for bugs that were discovered during the merge window and pop up during testing. User visible change: - show correct subvolume path in /proc/mounts for bind mounts Fixes: - fix compression messages when remounting with different level or compression algorithm - tree-log: fix some memory leaks on error handling paths - restore I_VERSION on remount - fix return values and error code mixups - fix umount crash with quotas enabled when removing sysfs files - fix trim range on a shrunk device" * tag 'for-5.9-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: trim: fix underflow in trim length to prevent access beyond device boundary btrfs: fix return value mixup in btrfs_get_extent btrfs: sysfs: fix NULL pointer dereference at btrfs_sysfs_del_qgroups() btrfs: check correct variable after allocation in btrfs_backref_iter_alloc btrfs: make sure SB_I_VERSION doesn't get unset by remount btrfs: fix memory leaks after failure to lookup checksums during inode logging btrfs: don't show full path of bind mounts in subvol= btrfs: fix messages after changing compression level by remount btrfs: only search for left_info if there is no right_info in try_merge_free_space btrfs: inode: fix NULL pointer dereference if inode doesn't need compression
Diffstat (limited to 'fs/btrfs/sysfs.c')
-rw-r--r--fs/btrfs/sysfs.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 104c80caaa74..c8df2edafd85 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -1565,9 +1565,11 @@ void btrfs_sysfs_del_qgroups(struct btrfs_fs_info *fs_info)
rbtree_postorder_for_each_entry_safe(qgroup, next,
&fs_info->qgroup_tree, node)
btrfs_sysfs_del_one_qgroup(fs_info, qgroup);
- kobject_del(fs_info->qgroups_kobj);
- kobject_put(fs_info->qgroups_kobj);
- fs_info->qgroups_kobj = NULL;
+ if (fs_info->qgroups_kobj) {
+ kobject_del(fs_info->qgroups_kobj);
+ kobject_put(fs_info->qgroups_kobj);
+ fs_info->qgroups_kobj = NULL;
+ }
}
/* Called when qgroups get initialized, thus there is no need for locking */