From f8d813e34f03823ddfeb3b9f44a9807d3ffb847e Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Tue, 2 Mar 2004 14:05:39 +0000
Subject: * Fix SDRAM timings for LITE5200 / IceCube board

* Handle Auti-MDIX / connection status for INCA-IP

* Fix USB problems when attempting to read 0 bytes
---
 common/usb_storage.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'common')

diff --git a/common/usb_storage.c b/common/usb_storage.c
index dbe9cd9..fd116be 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -899,8 +899,12 @@ unsigned long usb_stor_read(int device, unsigned long blknr, unsigned long blkcn
 	unsigned short smallblks;
 	struct usb_device *dev;
 	int retry,i;
-	ccb *srb=&usb_ccb;
-	device&=0xff;
+	ccb *srb = &usb_ccb;
+
+	if (blkcnt == 0)
+		return 0;
+
+	device &= 0xff;
 	/* Setup  device
 	 */
 	USB_STOR_PRINTF("\nusb_read: dev %d \n",device);
-- 
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