This is a note to let you know that I've just added the patch titled
USB: cdc-acm: check for valid interfaces
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-testing branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will be merged to the usb-next branch sometime soon,
after it pasts testing, and the merge window is open.
If you have any questions about this process, please let me know.
>From 403dff4e2c94f275e24fd85f40b2732ffec268a1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <[email protected]>
Date: Fri, 7 Nov 2014 08:48:15 -0800
Subject: USB: cdc-acm: check for valid interfaces
We need to check that we have both a valid data and control inteface for both
types of headers (union and not union.)
References: https://bugzilla.kernel.org/show_bug.cgi?id=83551
Reported-by: Simon Schubert <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/class/cdc-acm.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 6c6a5c4cc68c..546a17e8ad5b 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1195,10 +1195,11 @@ next_desc:
} else {
control_interface = usb_ifnum_to_if(usb_dev,
union_header->bMasterInterface0);
data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num =
union_header->bSlaveInterface0));
- if (!control_interface || !data_interface) {
- dev_dbg(&intf->dev, "no interfaces\n");
- return -ENODEV;
- }
+ }
+
+ if (!control_interface || !data_interface) {
+ dev_dbg(&intf->dev, "no interfaces\n");
+ return -ENODEV;
}
if (data_interface_num != call_interface_num)
--
2.1.3
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