X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=helper_thread.c;h=7874985504be2aa6c4c82c7683320c39409d927d;hb=d3851529fc160bdf8cfa266d2e4b4f87bb76cef9;hp=ad2e83b4e18f8812642683a8358d8a8ccd71d9b1;hpb=c31092b8ac06d845f3022339f55f482308e02b6e;p=fio.git

diff --git a/helper_thread.c b/helper_thread.c
index ad2e83b4..78749855 100644
--- a/helper_thread.c
+++ b/helper_thread.c
@@ -176,7 +176,10 @@ static void *helper_thread_main(void *data)
 			FD_SET(hd->pipe[0], &rfds);
 			FD_ZERO(&efds);
 			FD_SET(hd->pipe[0], &efds);
-			select(1, &rfds, NULL, &efds, &timeout);
+			ret = select(1, &rfds, NULL, &efds, &timeout);
+			if (ret < 0)
+				log_err("fio: select() call in helper thread failed: %s",
+					strerror(errno));
 			if (read_from_pipe(hd->pipe[0], &action, sizeof(action)) <
 			    0)
 				action = 0;