[PATCH] Add missing malloc check in libpayload

[Abhinav Srivastava]

Fixes #496: Add NULL check for malloc in
get_option_as_string to prevent potential crashes
from unhandled memory allocation failures.

Signed-off-by: Abhinav Srivastava 
---
 payloads/libpayload/drivers/options.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/payloads/libpayload/drivers/options.c b/payloads/libpayload/drivers/options.c
index b6d234222d..7571fd739a 100644
--- a/payloads/libpayload/drivers/options.c
+++ b/payloads/libpayload/drivers/options.c
@@ -318,6 +318,9 @@ int get_option_as_string(const struct nvram_accessor *nvram, struct cb_cmos_opti

/* extra byte to ensure 0-terminated strings */
    raw = malloc(cmos_length+1);
+	if (!raw) {
+    		return -1;
+	}
    memset(raw, 0, cmos_length+1);

int ret = get_option_with(nvram, option_table, raw, name);