[v2 PATCH] power: cpupower: utils: Add malloc return value check

From: Li kunyu
Date: Tue Oct 18 2022 - 21:46:37 EST


Add the check and judgment statement of malloc return value.

Signed-off-by: Li kunyu <kunyu@xxxxxxxxxxxx>
---
v2: Remove unlikely() check

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 36dbd0562240..083d5a6bb74e 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 = malloc(sizeof(char) * str_len);
+ if (!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 = malloc(sizeof(char) * str_len);
+ if (!offline_cpus_str)
+ return;

if (!bitmask_isallclear(offline_cpus)) {
bitmask_displaylist(offline_cpus_str, str_len, offline_cpus);
--
2.18.2