USB Storage, add meaningful return value
This patch changes the "usb storage" command to return success if it
finds a USB storage device, otherwise it returns error.
Signed-off-by: Markus Klotzbuecher <mk@denx.de>
diff --git a/common/usb_storage.c b/common/usb_storage.c
index 443d785..81d2f92 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -188,17 +188,20 @@
* show info on storage devices; 'usb start/init' must be invoked earlier
* as we only retrieve structures populated during devices initialization
*/
-void usb_stor_info(void)
+int usb_stor_info(void)
{
int i;
- if (usb_max_devs > 0)
+ if (usb_max_devs > 0) {
for (i = 0; i < usb_max_devs; i++) {
printf (" Device %d: ", i);
dev_print(&usb_dev_desc[i]);
+ return 0;
}
- else
+ } else {
printf("No storage devices, perhaps not 'usb start'ed..?\n");
+ return 1;
+ }
}
/*********************************************************************************