Patch "USB: serial: mos7840: fix non-atomic allocation in write path" has been added to the 4.7-stable tree

This is a note to let you know that I've just added the patch titled

USB: serial: mos7840: fix non-atomic allocation in write path

to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
usb-serial-mos7840-fix-non-atomic-allocation-in-write-path.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Alexey Khoroshilov <[email protected]>
Date: Fri, 12 Aug 2016 01:05:09 +0300
Subject: USB: serial: mos7840: fix non-atomic allocation in write path

From: Alexey Khoroshilov <[email protected]>

commit 3b7c7e52efda0d4640060de747768360ba70a7c0 upstream.

There is an allocation with GFP_KERNEL flag in mos7840_write(), while it may be called from interrupt context.

Follow-up for commit 191252837626 ("USB: kobil_sct: fix non-atomic allocation in write path")

Found by Linux Driver Verification project (linuxtesting.org).

---
 drivers/usb/serial/mos7840.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -1340,8 +1340,8 @@ static int mos7840_write(struct tty_stru
 	}
 
 	if (urb->transfer_buffer == NULL) {
-		urb->transfer_buffer =
-		    kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
+		urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
+					       GFP_ATOMIC);
 		if (!urb->transfer_buffer)
 			goto exit;
 	}

Patches currently in stable-queue which might be from [email protected] are

queue-4.7/usb-serial-mos7840-fix-non-atomic-allocation-in-write-path.patch queue-4.7/usb-serial-mos7720-fix-non-atomic-allocation-in-write-path.patch