Commit a9cfcd63 authored by Theodore Ts'o's avatar Theodore Ts'o

ext4: avoid trying to kfree an ERR_PTR pointer

Thanks to Dan Carpenter for extending smatch to find bugs like this.
(This was found using a development version of smatch.)

Fixes: 36de9286
Reported-by: Dan Carpenter <dan.carpenter@oracle.com
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
parent d4f03186
......@@ -3240,6 +3240,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
&new.de, &new.inlined);
if (IS_ERR(new.bh)) {
retval = PTR_ERR(new.bh);
new.bh = NULL;
goto end_rename;
}
if (new.bh) {
......@@ -3386,6 +3387,7 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
&new.de, &new.inlined);
if (IS_ERR(new.bh)) {
retval = PTR_ERR(new.bh);
new.bh = NULL;
goto end_rename;
}
......
......@@ -575,6 +575,7 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
bh = NULL;
goto out;
}
overhead = ext4_group_overhead_blocks(sb, group);
......@@ -603,6 +604,7 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
bh = bclean(handle, sb, block);
if (IS_ERR(bh)) {
err = PTR_ERR(bh);
bh = NULL;
goto out;
}
......
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