xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

USB: hub: fix SS max number of ports

Browse Source 
Add define for the maximum number of ports on a SuperSpeed hub as per
USB 3.1 spec Table 10-5, and use it when verifying the retrieved hub
descriptor.

This specifically avoids benign attempts to update the DeviceRemovable
mask for non-existing ports (should we get that far).

Fixes: dbe79bbe9d ("USB 3.0 Hub Changes")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2017-05-10 18:18:29 +02:00
committed by Greg Kroah-Hartman
parent bec444cd1c
commit 93491ced3c
2 changed files with 10 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/uapi/linux/usb/ch11.h
View File

@@ -22,6 +22,9 @@
*/
#define USB_MAXCHILDREN 31
/* See USB 3.1 spec Table 10-5 */
#define USB_SS_MAXPORTS 15
/*
* Hub request types
*/