properly handle return code of pipe() syscall

Signed-off-by: John Crispin <blogic@openwrt.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/log/logd.c b/log/logd.c
index a9fec9a..8cebeb8 100644
--- a/log/logd.c
+++ b/log/logd.c
@@ -82,7 +82,10 @@ read_log(struct ubus_context *ctx, struct ubus_object *obj,
 			count = blobmsg_get_u32(tb);
 	}
 
-	pipe(fds);
+	if (pipe(fds) == -1) {
+		fprintf(stderr, "logd: failed to create pipe: %s\n", strerror(errno));
+		return -1;
+	}
 	ubus_request_set_fd(ctx, req, fds[0]);
 	cl = calloc(1, sizeof(*cl));
 	cl->s.stream.notify_write = client_notify_write;