patch "auxdisplay: ks0108: fix refcount" added to char-misc-next

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

auxdisplay: ks0108: fix refcount

to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-next 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 also be merged in the next major kernel release during the merge window.

If you have any questions about this process, please let me know.

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

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(+)

index 5b93852392b8..0d752851a1ee 100644
@@ -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");

2.5.0