diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 5072bf9ae0ef8..55649bec0b4df 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -135,7 +135,8 @@ static int f2fs_xattr_advise_get(struct dentry *dentry, const char *name,
 	if (strcmp(name, "") != 0)
 		return -EINVAL;
 
-	*((char *)buffer) = F2FS_I(inode)->i_advise;
+	if (buffer)
+		*((char *)buffer) = F2FS_I(inode)->i_advise;
 	return sizeof(char);
 }