From 6db295481b879a684f4b09cf7ee00b9de24fb4ee Mon Sep 17 00:00:00 2001
From: Jukka Laitinen <jukkax@ssrc.tii.ae>
Date: Fri, 13 Jan 2023 15:24:56 +0400
Subject: [PATCH] fs/mmap/fs_rammap.c: Remove void * arithmetic

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
---
 fs/mmap/fs_rammap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/mmap/fs_rammap.c b/fs/mmap/fs_rammap.c
index 16ea9376598..222f9f40c67 100644
--- a/fs/mmap/fs_rammap.c
+++ b/fs/mmap/fs_rammap.c
@@ -62,7 +62,7 @@ static int unmap_rammap(FAR struct task_group_s *group,
    * simulate the unmapping.
    */
 
-  offset = start - entry->vaddr;
+  offset = (uintptr_t)start - (uintptr_t)entry->vaddr;
   if (offset + length < entry->length)
     {
       ferr("ERROR: Cannot umap without unmapping to the end\n");