Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1440e0967de8c598dae96d741652d498b3eb8f27
Commit: 1440e0967de8c598dae96d741652d498b3eb8f27
Parent: e58679805dab3fb75df88141d9d869904a93337f
Author: David Brownell <[EMAIL PROTECTED]>
AuthorDate: Sun Dec 9 22:53:09 2007 -0800
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Feb 1 14:34:59 2008 -0800
USB: gadget: at91_udc minor fix (there is no number six)
Fix a small glitch noted by Yannick Cote. There is no endpoint number
six, so if a (broken) host wrongly tried to change or read status of
that endpoint, the driver could access reserved register space.
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Cc: Yannick Cote <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/gadget/at91_udc.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 4b6ed35..305db36 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1153,7 +1153,7 @@ static void handle_setup(struct at91_udc *udc, struct
at91_ep *ep, u32 csr)
| USB_REQ_GET_STATUS:
tmp = w_index & USB_ENDPOINT_NUMBER_MASK;
ep = &udc->ep[tmp];
- if (tmp > NUM_ENDPOINTS || (tmp && !ep->desc))
+ if (tmp >= NUM_ENDPOINTS || (tmp && !ep->desc))
goto stall;
if (tmp) {
@@ -1176,7 +1176,7 @@ static void handle_setup(struct at91_udc *udc, struct
at91_ep *ep, u32 csr)
| USB_REQ_SET_FEATURE:
tmp = w_index & USB_ENDPOINT_NUMBER_MASK;
ep = &udc->ep[tmp];
- if (w_value != USB_ENDPOINT_HALT || tmp > NUM_ENDPOINTS)
+ if (w_value != USB_ENDPOINT_HALT || tmp >= NUM_ENDPOINTS)
goto stall;
if (!ep->desc || ep->is_iso)
goto stall;
@@ -1195,7 +1195,7 @@ static void handle_setup(struct at91_udc *udc, struct
at91_ep *ep, u32 csr)
| USB_REQ_CLEAR_FEATURE:
tmp = w_index & USB_ENDPOINT_NUMBER_MASK;
ep = &udc->ep[tmp];
- if (w_value != USB_ENDPOINT_HALT || tmp > NUM_ENDPOINTS)
+ if (w_value != USB_ENDPOINT_HALT || tmp >= NUM_ENDPOINTS)
goto stall;
if (tmp == 0)
goto succeed;
-
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