[PATCH 2.6.15/2.6.16-git] Fix off-by-one for num_values in uref_multirequests

[Ben Collins]

Found this when working with a HAPP UGCI device. It has a usage with 7
indexes. I could read them all one at a time, but using a multiref it
would only allow me to read the first 6. The patch below fixed it.

Signed-off-by: Ben Collins <bcollins@xxxxxxxxxx>

--- a/drivers/usb/input/hiddev.c
+++ b/drivers/usb/input/hiddev.c
@@ -632,7 +632,7 @@ static int hiddev_ioctl(struct inode *in
 
 			else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
 				 (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
-				  uref->usage_index + uref_multi->num_values >= field->report_count))
+				  uref->usage_index + uref_multi->num_values > field->report_count))
 				goto inval;
 			}
 

-- 
Ben Collins
Kernel Developer - Ubuntu Linux

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