Patch "auxdisplay: ks0108: fix refcount" has been added to the 4.1-stable tree

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

auxdisplay: ks0108: fix refcount

to the 4.1-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:
auxdisplay-ks0108-fix-refcount.patch
and it can be found in the queue-4.1 subdirectory.

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

From: Sudip Mukherjee <[email protected]>
Date: Mon, 20 Jul 2015 17:27:21 +0530
Subject: auxdisplay: ks0108: fix refcount

From: Sudip Mukherjee <[email protected]>

commit bab383de3b84e584b0f09227151020b2a43dc34c upstream.

parport_find_base() will implicitly do parport_get_port() which increases the refcount. Then parport_register_device() will again increment the refcount. But while unloading the module we are only doing parport_unregister_device() decrementing the refcount only once. We add an parport_put_port() to neutralize the effect of parport_get_port().

---
 drivers/auxdisplay/ks0108.c |    1 +
 1 file changed, 1 insertion(+)

@@ -139,6 +139,7 @@ static int __init ks0108_init(void)
 
 	ks0108_pardevice = parport_register_device(ks0108_parport, KS0108_NAME,
 		NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+	parport_put_port(ks0108_parport);
 	if (ks0108_pardevice == NULL) {
 		printk(KERN_ERR KS0108_NAME ": ERROR: "
 			"parport didn't register new device\n");

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

queue-4.1/auxdisplay-ks0108-fix-refcount.patch