alsactl: don't exit on EINTR from epoll_wait().
diff mbox series

Message ID 20191015043650.23536-1-zev@bewilderbeest.net
State New
Headers show
Series
  • alsactl: don't exit on EINTR from epoll_wait().
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Commit Message

Zev Weiss Oct. 15, 2019, 4:36 a.m. UTC
Previously, things like attaching strace to a running 'alsactl monitor'
process would cause it to exit.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
---
 alsactl/monitor.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
diff mbox series

diff --git a/alsactl/monitor.c b/alsactl/monitor.c
index 6b090e4f5c92..cf4167bee165 100644
--- a/alsactl/monitor.c
+++ b/alsactl/monitor.c
@@ -342,6 +342,8 @@  static int run_dispatcher(int epfd, int sigfd, int infd, struct list_head *srcs,
 
 		count = epoll_wait(epfd, epev, max_ev_count, 200);
 		if (count < 0) {
+			if (errno == EINTR)
+				continue;
 			err = count;
 			break;
 		}