diff --git a/drivers/char/adsprpc.c b/drivers/char/adsprpc.c
index b898007c63d9..23b48dc6981b 100644
--- a/drivers/char/adsprpc.c
+++ b/drivers/char/adsprpc.c
@@ -479,6 +479,10 @@ static int fastrpc_mmap_find(struct fastrpc_file *fl, int fd, uintptr_t va,
 			if (va >= map->va &&
 				va + len <= map->va + map->len &&
 				map->fd == fd) {
+				if (map->refs + 1 == INT_MAX) {
+					spin_unlock(&me->hlock);
+					return -ETOOMANYREFS;
+				}
 				map->refs++;
 				match = map;
 				break;
@@ -491,6 +495,10 @@ static int fastrpc_mmap_find(struct fastrpc_file *fl, int fd, uintptr_t va,
 			if (va >= map->va &&
 				va + len <= map->va + map->len &&
 				map->fd == fd) {
+				if (map->refs + 1 == INT_MAX) {
+					spin_unlock(&fl->hlock);
+					return -ETOOMANYREFS;
+				}
 				map->refs++;
 				match = map;
 				break;