[flashrom-gerrit] Change in ...flashrom[master]: helpers: Add realloc_or_free()

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/31015

Change subject: helpers: Add realloc_or_free()
......................................................................

helpers: Add realloc_or_free()

Just like realloc() but frees the original pointer on failure.

Change-Id: Iee0bf09cd7b57d2032efd490e7d542dba80c0401
Signed-off-by: Nico Huber 
---
M flash.h
M helpers.c
2 files changed, 11 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/15/31015/1

diff --git a/flash.h b/flash.h
index 911214c..3eefd45 100644
--- a/flash.h
+++ b/flash.h
@@ -308,6 +308,7 @@
 #if defined(__DJGPP__) || (!defined(__LIBPAYLOAD__) && !defined(HAVE_STRNLEN))
 size_t strnlen(const char *str, size_t n);
 #endif
+void *realloc_or_free(void *ptr, size_t size);

/* flashrom.c */
 extern const char flashrom_version[];
diff --git a/helpers.c b/helpers.c
index a714908..deff3b0 100644
--- a/helpers.c
+++ b/helpers.c
@@ -114,3 +114,13 @@
    return i;
 }
 #endif
+
+void *realloc_or_free(void *const ptr, const size_t size)
+{
+	void *const ret = realloc(ptr, size);
+	if (!ret) {
+		msg_gerr("Out of memory!\n");
+		free(ptr);
+	}
+	return ret;
+}