From: Tejun Heo <htejun@gmail.com>
Date: Sat, 27 Jan 2007 12:47:02 +0000 (+0100)
Subject: ide: unregister idepnp driver on unload
X-Git-Tag: v2.6.20-rc7~17^2~1
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6855036aa035913bc2bfb31c41576a49f42ecd5f;p=linux-2.6

ide: unregister idepnp driver on unload

idepnp driver is registered as a pnp driver on ide init but doesn't
get unregistered on ide unload causing driver list corruption and
eventually oops.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
index df7d1504f8..98410ca044 100644
--- a/drivers/ide/ide-pnp.c
+++ b/drivers/ide/ide-pnp.c
@@ -73,3 +73,8 @@ void __init pnpide_init(void)
 {
 	pnp_register_driver(&idepnp_driver);
 }
+
+void __exit pnpide_exit(void)
+{
+	pnp_unregister_driver(&idepnp_driver);
+}
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 16890769dc..3b334af0c7 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -1782,6 +1782,7 @@ done:
 }
 
 extern void pnpide_init(void);
+extern void pnpide_exit(void);
 extern void h8300_ide_init(void);
 
 /*
@@ -2094,6 +2095,10 @@ void cleanup_module (void)
 	for (index = 0; index < MAX_HWIFS; ++index)
 		ide_unregister(index);
 
+#ifdef CONFIG_BLK_DEV_IDEPNP
+	pnpide_exit();
+#endif
+
 #ifdef CONFIG_PROC_FS
 	proc_ide_destroy();
 #endif