diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/usb_storage.c | 8 |
1 files changed, 6 insertions, 2 deletions
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); |