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authorJoseph Qi <joseph.qi@linux.alibaba.com>2020-11-03 03:29:02 +0100
committerTheodore Ts'o <tytso@mit.edu>2020-11-07 04:52:36 +0100
commit7067b2619017d51e71686ca9756b454de0e5826a (patch)
treeba8c392b3aa53be864c35aa9934699aafe6e0b44
parentext4: silence an uninitialized variable warning (diff)
downloadlinux-7067b2619017d51e71686ca9756b454de0e5826a.tar.xz
linux-7067b2619017d51e71686ca9756b454de0e5826a.zip
ext4: unlock xattr_sem properly in ext4_inline_data_truncate()
It takes xattr_sem to check inline data again but without unlock it in case not have. So unlock it before return. Fixes: aef1c8513c1f ("ext4: let ext4_truncate handle inline data correctly") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/1604370542-124630-1-git-send-email-joseph.qi@linux.alibaba.com Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org
-rw-r--r--fs/ext4/inline.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index caa51473207d..b41512d1badc 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1880,6 +1880,7 @@ int ext4_inline_data_truncate(struct inode *inode, int *has_inline)
ext4_write_lock_xattr(inode, &no_expand);
if (!ext4_has_inline_data(inode)) {
+ ext4_write_unlock_xattr(inode, &no_expand);
*has_inline = 0;
ext4_journal_stop(handle);
return 0;