X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/04e76de638c84c3cb88a7178764b700d5097e607..1e79d00a9f4c2f059c8bd2dc22e601c4ed4065d6:/hmcfgusb.c

diff --git a/hmcfgusb.c b/hmcfgusb.c
index d8a442f..0857a4b 100644
--- a/hmcfgusb.c
+++ b/hmcfgusb.c
@@ -393,6 +393,7 @@ int hmcfgusb_poll(struct hmcfgusb_dev *dev, int timeout)
 {
 	struct timeval tv;
 	int usb_event = 0;
+	int timed_out = 0;
 	int i;
 	int n;
 	int fd_n;
@@ -430,6 +431,7 @@ int hmcfgusb_poll(struct hmcfgusb_dev *dev, int timeout)
 			return -1;
 		} else if (n == 0) {
 			usb_event = 1;
+			timed_out = 1;
 		} else {
 			for (fd_n = 0; fd_n < dev->n_pfd; fd_n++) {
 				if (dev->pfd[fd_n].revents) {
@@ -461,6 +463,9 @@ int hmcfgusb_poll(struct hmcfgusb_dev *dev, int timeout)
 		errno = quit;
 	}
 
+	if (timed_out)
+		errno = ETIMEDOUT;
+
 	return -1;
 }