Use ssize_t which is a signed int and test if read() returns -1.

Thanks to David Wu.

1 files changed, 2 insertions, 2 deletions

diff --git a/signals.c b/signals.c
index daf03476..648bd311 100644
--- a/signals.c
+++ b/signals.c
@@ -71,11 +71,11 @@ signal_read(void)
 {
 	int sig = -1;
 	char buf[16];
-	size_t bytes;
+	ssize_t bytes;
 
 	memset(buf, 0, sizeof(buf));
 	bytes = read(signal_pipe[0], buf, sizeof(buf));
-	if (bytes >= sizeof(sig))
+	if (bytes >= 0 && bytes >= sizeof(sig))
 		memcpy(&sig, buf, sizeof(sig));
 	return sig;
 }