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tools/power/x86/intel-speed-select: Handle open() failure case

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Add handling for open() failure case to make sure a valid file
descriptor is passed to dup().

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Zhang Rui 2023-01-12 14:43:35 +08:00 committed by Hans de Goede
parent b8bebc8e58
commit 364ba3b711
1 changed files with 2 additions and 0 deletions
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2
tools/power/x86/intel-speed-select/isst-daemon.c
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@ -174,6 +174,8 @@ static void daemonize(char *rundir, char *pidfile)
close(i);
i = open("/dev/null", O_RDWR);
if (i < 0)
exit(EXIT_FAILURE);
ret = dup(i);
if (ret == -1)
exit(EXIT_FAILURE);