Thread (125 messages) 125 messages, 4 authors, 2016-10-03
STALE3556d

[PATCH 3.12 031/119] USB: fix typo in wMaxPacketSize validation

From: Jiri Slaby <hidden>
Date: 2016-09-29 10:50:38
Also in: lkml
Subsystem: the rest, usb subsystem · Maintainers: Linus Torvalds, Greg Kroah-Hartman

From: Alan Stern <stern@rowland.harvard.edu>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 6c73358c83ce870c0cf32413e5cadb3b9a39c606 upstream.

The maximum value allowed for wMaxPacketSize of a high-speed interrupt
endpoint is 1024 bytes, not 1023.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
Signed-off-by: Jiri Slaby <redacted>
---
 drivers/usb/core/config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index c7e10f5b1143..666cd3641d31 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -160,7 +160,7 @@ static const unsigned short high_speed_maxpacket_maxes[4] = {
 	[USB_ENDPOINT_XFER_CONTROL] = 64,
 	[USB_ENDPOINT_XFER_ISOC] = 1024,
 	[USB_ENDPOINT_XFER_BULK] = 512,
-	[USB_ENDPOINT_XFER_INT] = 1023,
+	[USB_ENDPOINT_XFER_INT] = 1024,
 };
 static const unsigned short super_speed_maxpacket_maxes[4] = {
 	[USB_ENDPOINT_XFER_CONTROL] = 512,
-- 
2.10.0
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