From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Tue, 7 Apr 2015 08:25:01 +0000 (+0530)
Subject: staging: panel: remove duplicate code
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9059c615a8ba503cb5a7823d7f943a384e6063e3;p=openwrt%2Fstaging%2Fblogic.git

staging: panel: remove duplicate code

both the misc_deregister(), parport_release() and
parport_unregister_device() is there in the module_exit function also.
detach is called from parport_unregister_driver() and by the time
detach executes misc_deregister(), parport_release() and
parport_unregister_device() has already executed marking
keypad_initialized and lcd.initialized  as false. so this part of the
code will never execute.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index ea54fb4ec837..1d8ed8b35375 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -2252,20 +2252,6 @@ static void panel_detach(struct parport *port)
 	}
 
 	unregister_reboot_notifier(&panel_notifier);
-
-	if (keypad.enabled && keypad_initialized) {
-		misc_deregister(&keypad_dev);
-		keypad_initialized = 0;
-	}
-
-	if (lcd.enabled && lcd.initialized) {
-		misc_deregister(&lcd_dev);
-		lcd.initialized = false;
-	}
-
-	parport_release(pprt);
-	parport_unregister_device(pprt);
-	pprt = NULL;
 }
 
 static struct parport_driver panel_driver = {