[U-Boot] [PATCH] common/usb_storage.c: Clean up usb_storage_probe()

Tom Rini trini at konsulko.com
Sun Oct 11 13:26:27 CEST 2015


We have the protocol and subclass variables which are used only in
disabled debug code.  This code dates back to the initial git import and
seemingly dead code so remove it.

This was detected by Coverity (CID 131117)

Signed-off-by: Tom Rini <trini at konsulko.com>
---
 common/usb_storage.c |   29 ++---------------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/common/usb_storage.c b/common/usb_storage.c
index b390310..1a1633f 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -1177,25 +1177,9 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 	struct usb_endpoint_descriptor *ep_desc;
 	unsigned int flags = 0;
 
-	int protocol = 0;
-	int subclass = 0;
-
 	/* let's examine the device now */
 	iface = &dev->config.if_desc[ifnum];
 
-#if 0
-	/* this is the place to patch some storage devices */
-	debug("iVendor %X iProduct %X\n", dev->descriptor.idVendor,
-			dev->descriptor.idProduct);
-
-	if ((dev->descriptor.idVendor) == 0x066b &&
-	    (dev->descriptor.idProduct) == 0x0103) {
-		debug("patched for E-USB\n");
-		protocol = US_PR_CB;
-		subclass = US_SC_UFI;	    /* an assumption */
-	}
-#endif
-
 	if (dev->descriptor.bDeviceClass != 0 ||
 			iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE ||
 			iface->desc.bInterfaceSubClass < US_SC_MIN ||
@@ -1215,17 +1199,8 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 	ss->ifnum = ifnum;
 	ss->pusb_dev = dev;
 	ss->attention_done = 0;
-
-	/* If the device has subclass and protocol, then use that.  Otherwise,
-	 * take data from the specific interface.
-	 */
-	if (subclass) {
-		ss->subclass = subclass;
-		ss->protocol = protocol;
-	} else {
-		ss->subclass = iface->desc.bInterfaceSubClass;
-		ss->protocol = iface->desc.bInterfaceProtocol;
-	}
+	ss->subclass = iface->desc.bInterfaceSubClass;
+	ss->protocol = iface->desc.bInterfaceProtocol;
 
 	/* set the handler pointers based on the protocol */
 	debug("Transport: ");
-- 
1.7.9.5



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