[U-Boot] [PATCH] usb_storage: skip all unknown devices when probing

[Soeren Moch]

Not only skip storage devices with DEV_TYPE_UNKNOWN, but also all devices
which are unknown to u-boot (e.g., are not HARDDISK, TAPE, CDROM, OPDISK).

This especially avoids long timeouts when probing for external usb harddisks
which provide "Enclosure Services".

Signed-off-by: Soeren Moch <smoch at web.de>
--
Cc: Marek Vasut <marex at denx.de>
Cc: Tom Rini <trini at ti.com>
---
 common/usb_storage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/usb_storage.c b/common/usb_storage.c
index eb7706c..0ac7b48 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -1351,7 +1351,7 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss,
 	perq = usb_stor_buf[0];
 	modi = usb_stor_buf[1];
 
-	if ((perq & 0x1f) == 0x1f) {
+	if ((perq & 0x1f) > DEV_TYPE_OPDISK) {
 		/* skip unknown devices */
 		return 0;
 	}
-- 
1.9.1