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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-02-21 19:17:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-02 10:40:31 +0300 |
| commit | d9d262229d646ca28d3aaca2b46906d92f9b6c6f (patch) | |
| tree | 84baac8ecb5e4d79291148414b1487ca44f51767 /fs | |
| parent | 0feaa3aeea0914a33a2da33d5e9480d4a17b27e2 (diff) | |
| download | linux-d9d262229d646ca28d3aaca2b46906d92f9b6c6f.tar.xz | |
ext4: fix some error pointer dereferences
commit 7159a986b4202343f6cca3bb8079ecace5816fd6 upstream.
We can't pass error pointers to brelse().
Fixes: fb265c9cb49e ("ext4: add ext4_sb_bread() to disambiguate ENOMEM cases")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/xattr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 311761a6ef6d..6761e905cab0 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -828,6 +828,7 @@ int ext4_get_inode_usage(struct inode *inode, qsize_t *usage) bh = ext4_sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl, REQ_PRIO); if (IS_ERR(bh)) { ret = PTR_ERR(bh); + bh = NULL; goto out; } @@ -2905,6 +2906,7 @@ int ext4_xattr_delete_inode(handle_t *handle, struct inode *inode, if (error == -EIO) EXT4_ERROR_INODE(inode, "block %llu read error", EXT4_I(inode)->i_file_acl); + bh = NULL; goto cleanup; } error = ext4_xattr_check_block(inode, bh); @@ -3061,6 +3063,7 @@ ext4_xattr_block_cache_find(struct inode *inode, if (IS_ERR(bh)) { if (PTR_ERR(bh) == -ENOMEM) return NULL; + bh = NULL; EXT4_ERROR_INODE(inode, "block %lu read error", (unsigned long)ce->e_value); } else if (ext4_xattr_cmp(header, BHDR(bh)) == 0) { |