ext4: remove redundant operation that set bh to NULL

The out_fail branch path don't release the bh and the second bh is
valid only in the for statement, so we don't need to set them to NULL.

Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Reviewed-by: zhangyi (F) <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/1603194069-17557-1-git-send-email-kaixuxia@tencent.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9447204..40e7aeb 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4074,7 +4074,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        if (IS_ERR(bh)) {
                ext4_msg(sb, KERN_ERR, "unable to read superblock");
                ret = PTR_ERR(bh);
-               bh = NULL;
                goto out_fail;
        }
        /*
@@ -4703,7 +4702,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
                               "can't read group descriptor %d", i);
                        db_count = i;
                        ret = PTR_ERR(bh);
-                       bh = NULL;
                        goto failed_mount2;
                }
                rcu_read_lock();