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ext4: use IS_ERR() for error checking of path

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With this fix, fast commit recovery code uses IS_ERR() for path
returned by ext4_find_extent.

Fixes: 8016e29f43 ("ext4: fast commit recovery path")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201027204342.2794949-1-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Harshad Shirwadkar 2020-10-27 13:43:42 -07:00 committed by Theodore Ts'o
parent b5b18160a3
commit 8c9be1e58a
1 changed files with 4 additions and 2 deletions
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6
fs/ext4/fast_commit.c
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@ -1616,8 +1616,10 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
if (ret == 0) {
/* Range is not mapped */
path = ext4_find_extent(inode, cur, NULL, 0);
if (!path)
continue;
if (IS_ERR(path)) {
iput(inode);
return 0;
}
memset(&newex, 0, sizeof(newex));
newex.ee_block = cpu_to_le32(cur);
ext4_ext_store_pblock(