feh_main_iteration: Properly check select() return value

Trying to handle stdin when select() in fact returned an error due to being
interrupted by a signal is a rather bad idea.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main.c b/src/main.c
index 99397fd..1a76e2d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -191,7 +191,7 @@ int feh_main_iteration(int block)
 				   in that */
 				feh_handle_timer();
 			}
-			else if (count && (FD_ISSET(0, &fdset)))
+			else if ((count > 0) && (FD_ISSET(0, &fdset)))
 				feh_event_handle_stdin();
 		}
 	} else {
@@ -204,7 +204,7 @@ int feh_main_iteration(int block)
 					&& ((errno == ENOMEM) || (errno == EINVAL)
 						|| (errno == EBADF)))
 				eprintf("Connection to X display lost");
-			else if (count && (FD_ISSET(0, &fdset)))
+			else if ((count > 0) && (FD_ISSET(0, &fdset)))
 				feh_event_handle_stdin();
 		}
 	}