* [PATCH] selftests: posix_timers: Make signal handling safer
@ 2017-11-21 20:10 SF Markus Elfring
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From: SF Markus Elfring @ 2017-11-21 20:10 UTC (permalink / raw)
To: linux-kselftest, Frederic Weisbecker, John Stultz, Shuah Khan,
Stephen Boyd, Thomas Gleixner
Cc: LKML, kernel-janitors, Andrew Morton, Kosaki Motohiro,
Olivier Langlois, Peter Zijlstra, Stanislaw Gruszka,
Steven Rostedt
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 21 Nov 2017 20:56:51 +0100
Use the data type "sig_atomic_t" for the variable "done"
so that it can be safely modified by a signal handler.
Fixes: 0bc4b0cf15708fca04095232c4e448634e94d029 ("selftests: add basic posix timers selftests")
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
tools/testing/selftests/timers/posix_timers.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/timers/posix_timers.c b/tools/testing/selftests/timers/posix_timers.c
index 15cf56d32155..d64732c8b69a 100644
--- a/tools/testing/selftests/timers/posix_timers.c
+++ b/tools/testing/selftests/timers/posix_timers.c
@@ -20,7 +20,7 @@
#define DELAY 2
#define USECS_PER_SEC 1000000
-static volatile int done;
+static sig_atomic_t done;
/* Busy loop in userspace to elapse ITIMER_VIRTUAL */
static void user_loop(void)
--
2.15.0
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