ext4: check ext4_journal_get_write_access() errors
Check ext4_journal_get_write_access() errors.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: adilger@clusterfs.com
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mingming Cao <cmm@us.ibm.com>
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 6861194..63c33e0 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -57,10 +57,15 @@
*block = inode->i_size >> inode->i_sb->s_blocksize_bits;
- if ((bh = ext4_bread(handle, inode, *block, 1, err))) {
+ bh = ext4_bread(handle, inode, *block, 1, err);
+ if (bh) {
inode->i_size += inode->i_sb->s_blocksize;
EXT4_I(inode)->i_disksize = inode->i_size;
- ext4_journal_get_write_access(handle,bh);
+ *err = ext4_journal_get_write_access(handle, bh);
+ if (*err) {
+ brelse(bh);
+ bh = NULL;
+ }
}
return bh;
}