From: Li kunyu <kunyu@nfschina.com>
To: shuah@kernel.org
Cc: trenn@suse.com, ray.huang@amd.com, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, Li kunyu <kunyu@nfschina.com>
Subject: [PATCH] power: cpupower: utils: Add malloc return value check
Date: Fri, 14 Oct 2022 12:29:11 +0800 [thread overview]
Message-ID: <20221014042911.298308-1-kunyu@nfschina.com> (raw)
Add the check and judgment statement of malloc return value.
Signed-off-by: Li kunyu <kunyu@nfschina.com>
---
tools/power/cpupower/utils/helpers/misc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c
index 9547b29254a7..eafdbd6d760c 100644
--- a/tools/power/cpupower/utils/helpers/misc.c
+++ b/tools/power/cpupower/utils/helpers/misc.c
@@ -139,6 +139,8 @@ void print_online_cpus(void)
str_len = online_cpus->size * 5;
online_cpus_str = (void *)malloc(sizeof(char) * str_len);
+ if (unlikely(!online_cpus_str))
+ return;
if (!bitmask_isallclear(online_cpus)) {
bitmask_displaylist(online_cpus_str, str_len, online_cpus);
@@ -157,6 +159,8 @@ void print_offline_cpus(void)
str_len = offline_cpus->size * 5;
offline_cpus_str = (void *)malloc(sizeof(char) * str_len);
+ if (unlikely(!offline_cpus_str))
+ return;
if (!bitmask_isallclear(offline_cpus)) {
bitmask_displaylist(offline_cpus_str, str_len, offline_cpus);
--
2.18.2
next reply other threads:[~2022-10-14 4:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-14 4:29 Li kunyu [this message]
2022-10-18 20:33 ` Shuah Khan
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