ext4: correct the error handle in ext4_fallocate()

The error out label of file_modified() should be out_inode_lock in
ext4_fallocate().

Fixes: 2890e5e ("ext4: move out common parts into ext4_fallocate()")
Reported-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Baokun Li <libaokun1@huawei.com>
Link: https://patch.msgid.link/20250319023557.2785018-1-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Author: zhangyi089

fs/ext4/extents.c

@@ -4744,7 +4744,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 
 	ret = file_modified(file);
 	if (ret)
-		return ret;
+		goto out_inode_lock;
 
 	if ((mode & FALLOC_FL_MODE_MASK) == FALLOC_FL_ALLOCATE_RANGE) {
 		ret = ext4_do_fallocate(file, offset, len, mode);