From: Zhongqiu Han <quic_zhonhan@quicinc.com>
Date: Wed, 19 Feb 2025 12:27:15 +0000 (+0800)
Subject: pm: cpupower: bench: Prevent NULL dereference on malloc failure
X-Git-Tag: v6.15-rc1~191^2~5^2~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=208baa3ec9043a664d9acfb8174b332e6b17fb69;p=thirdparty%2Flinux.git

pm: cpupower: bench: Prevent NULL dereference on malloc failure

If malloc returns NULL due to low memory, 'config' pointer can be NULL.
Add a check to prevent NULL dereference.

Link: https://lore.kernel.org/r/20250219122715.3892223-1-quic_zhonhan@quicinc.com
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
---

diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 080678d9d74e2..bd67c758b33ac 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -121,6 +121,10 @@ out_dir:
 struct config *prepare_default_config()
 {
 	struct config *config = malloc(sizeof(struct config));
+	if (!config) {
+		perror("malloc");
+		return NULL;
+	}
 
 	dprintf("loading defaults\n");