From 4a5b3a33b980266a7b64d9d08023c1bd4c87a7ad Mon Sep 17 00:00:00 2001
From: Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>
Date: Wed, 10 Feb 2021 09:18:26 +0100
Subject: [PATCH] Check return value of memory_map_fixed()

All other calls to memory_map_fixed() are checked, and this one may also
theoretically fail.
---
 h_malloc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/h_malloc.c b/h_malloc.c
index 625ca5f..516c5e9 100644
--- a/h_malloc.c
+++ b/h_malloc.c
@@ -903,7 +903,10 @@ static int regions_grow(void) {
         }
     }
 
-    memory_map_fixed(ra->regions, ra->total * sizeof(struct region_metadata));
+    if (memory_map_fixed(ra->regions, ra->total * sizeof(struct region_metadata))) {
+	    return 1;
+    }
+
     memory_set_name(ra->regions, ra->total * sizeof(struct region_metadata), "malloc allocator_state");
     ra->free = ra->free + ra->total;
     ra->total = newtotal;