From 59e3f74a2e1a0806350e1ffd77a528821d1f2be3 Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Fri, 26 Apr 2024 16:06:35 +0200
Subject: Kernel: More out of memory condition checks

---
 kernel/kmalloc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'kernel/kmalloc.c')

diff --git a/kernel/kmalloc.c b/kernel/kmalloc.c
index 087609e..12e8232 100644
--- a/kernel/kmalloc.c
+++ b/kernel/kmalloc.c
@@ -12,7 +12,11 @@
 void *kmalloc_align(size_t s, void **physical) {
   // TODO: It should reuse virtual regions so that it does not run out
   // of address space.
-  return ksbrk_physical(s, physical);
+  void *rc;
+  if ((void *)-1 == (rc = ksbrk_physical(s, physical))) {
+    return NULL;
+  }
+  return rc;
 }
 
 void kmalloc_align_free(void *p, size_t s) {
-- 
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