diff --git a/fs/hmdfs/comm/socket_adapter.c b/fs/hmdfs/comm/socket_adapter.c
index e6b340b4ee72ac35592f8a67e323696218b8b312..54feb31e811dbe5628b52eb85dd74fc04dda4cd5 100644
--- a/fs/hmdfs/comm/socket_adapter.c
+++ b/fs/hmdfs/comm/socket_adapter.c
@@ -878,6 +878,11 @@ static int hmdfs_readfile_slice(struct sendmsg_wait_queue *msg_info,
 	loff_t offset;
 	ssize_t written_size;
 
+	if (filp == NULL) {
+		hmdfs_warning("recv_info filp is NULL \n");
+		return -EINVAL;
+	}
+
 	if (atomic_read(&recv_info->state) != FILE_RECV_PROCESS)
 		return -EBUSY;
 
diff --git a/fs/hmdfs/hmdfs_server.c b/fs/hmdfs/hmdfs_server.c
index ae4a941a4d71f4cec084f98f589dcb44a8346fec..d09b4b6ced2b1d300bae5827d05fc302462b6484 100644
--- a/fs/hmdfs/hmdfs_server.c
+++ b/fs/hmdfs/hmdfs_server.c
@@ -37,7 +37,7 @@ static void find_first_no_slash(const char **name, int *len)
 	const char *s = *name;
 	int l = *len;
 
-	while (*s == '/' && l > 0) {
+	while (l > 0 && *s == '/') {
 		s++;
 		l--;
 	}
@@ -51,7 +51,7 @@ static void find_first_slash(const char **name, int *len)
 	const char *s = *name;
 	int l = *len;
 
-	while (*s != '/' && l > 0) {
+	while (l > 0 && *s != '/') {
 		s++;
 		l--;
 	}