commit db1d9d38e2f108e67ca689cfb38f641106535666
author David Brown <david.brown@linaro.org> Fri Jan 06 11:07:54 2017 -0700
committer David Brown <david.brown@linaro.org> Fri Jan 06 11:07:54 2017 -0700
tree ca6ae73047b6f98f1d91d12771cf6445b551afc9
parent 3569c378942d3b9751f68fc8a60874943d2c1e6c

loader: Remove malloc dependency

Allocate a static tmpbuf instead of calling malloc.  This is the only
direct call to malloc in the code.

boot/bootutil/src/loader.c

diff --git a/boot/bootutil/src/loader.c b/boot/bootutil/src/loader.c
index 4d17291..9d85511 100644
--- a/boot/bootutil/src/loader.c
+++ b/boot/bootutil/src/loader.c
@@ -484,14 +484,8 @@
 static int
 boot_image_check(struct image_header *hdr, const struct flash_area *fap)
 {
-    static void *tmpbuf;
+    static uint8_t tmpbuf[BOOT_TMPBUF_SZ];
 
-    if (!tmpbuf) {
-        tmpbuf = malloc(BOOT_TMPBUF_SZ);
-        if (!tmpbuf) {
-            return BOOT_ENOMEM;
-        }
-    }
     if (bootutil_img_validate(hdr, fap, tmpbuf, BOOT_TMPBUF_SZ,
                               NULL, 0, NULL)) {
         return BOOT_EBADIMAGE;