From: Antonino A. Daplas <adaplas@gmail.com>
Date: Mon, 3 Jul 2006 07:24:20 +0000 (-0700)
Subject: [PATCH] vt: Decrement ref count of the VT backend on deallocation
X-Git-Tag: v2.6.18-rc1~124
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d459ec0baa5d22e111dfb139c46d6d788a9eac20;p=linux-2.6

[PATCH] vt: Decrement ref count of the VT backend on deallocation

When a VT is newly allocated, the module reference count of the backend
will be incremented.  This should be balanced by a module_put() when this
VT is deallocated.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 3ef823d7d2..da7e66a2a3 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -886,6 +886,7 @@ void vc_disallocate(unsigned int currcons)
 	if (vc_cons_allocated(currcons)) {
 		struct vc_data *vc = vc_cons[currcons].d;
 		vc->vc_sw->con_deinit(vc);
+		module_put(vc->vc_sw->owner);
 		if (vc->vc_kmalloced)
 			kfree(vc->vc_screenbuf);
 		if (currcons >= MIN_NR_CONSOLES)