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selftests/resctrl: Fix uninitialized .sa_flags 

commit beb7f471847663559bd0fe60af1d70e05a1d7c6c upstream.

signal_handler_unregister() calls sigaction() with uninitializing
sa_flags in the struct sigaction.

Make sure sa_flags is always initialized in signal_handler_unregister()
by initializing the struct sigaction when declaring it. Also add the
initialization to signal_handler_register() even if there are no know
bugs in there because correctness is then obvious from the code itself.

Fixes: 73c55fa5ab ("selftests/resctrl: Commonize the signal handler register/unregister for all tests")
Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2023-10-02 12:48:07 +03:00 committed by Greg Kroah-Hartman
parent 0e0aa7108a
commit 38052bd5c1
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/resctrl/resctrl_val.c
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@ -482,7 +482,7 @@ void ctrlc_handler(int signum, siginfo_t *info, void *ptr)
*/
int signal_handler_register(void)
{
struct sigaction sigact;
struct sigaction sigact = {};
int ret = 0;
sigact.sa_sigaction = ctrlc_handler;
@ -504,7 +504,7 @@ int signal_handler_register(void)
*/
void signal_handler_unregister(void)
{
struct sigaction sigact;
struct sigaction sigact = {};
sigact.sa_handler = SIG_DFL;
sigemptyset(&sigact.sa_mask);