Commit a3f7c3fc authored Oct 15, 2018 by Randy Dunlap Committed by Dmitry Torokhov Oct 15, 2018

Input: wm97xx-ts - fix exit path



Loading then unloading wm97xx-ts.ko when CONFIG_AC97_BUS=m
causes a WARNING: from drivers/base/driver.c:

Unexpected driver unregister!
WARNING: CPU: 0 PID: 1709 at ../drivers/base/driver.c:193 driver_unregister+0x30/0x40

Fix this by only calling driver_unregister() with the same
condition that driver_register() is called.

Fixes: ae9d1b5f ("Input: wm97xx: add new AC97 bus support")

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

parent d9265e8a

drivers/input/touchscreen/wm97xx-core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -929,6 +929,7 @@ static int __init wm97xx_init(void)

		static void __exit wm97xx_exit(void)
		{
		if (IS_BUILTIN(CONFIG_AC97_BUS))
		driver_unregister(&wm97xx_driver);
		platform_driver_unregister(&wm97xx_mfd_driver);
		}

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