linux-kernel - [PATCH] Input: i8042: remove the modifications to i8042_platform

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Date:   Wed, 9 Nov 2022 03:41:48 +0000
From:   Chen Jun <chenjun102@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>,
        <dmitry.torokhov@...il.com>, <tiwai@...e.de>
CC:     <xuqiang36@...wei.com>
Subject: [PATCH] Input: i8042: remove the modifications to i8042_platform_device

i8042_platform_device can be changed in i8042_{probe|remove}.
This could leave a i8042 device on the platform bus and release resources
unexpectedly when i8042.ko is re-probed.

Fixes: 9222ba68c3f4 ("Input: i8042 - add deferred probe support")
Signed-off-by: Chen Jun <chenjun102@...wei.com>
---
 drivers/input/serio/i8042.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index f9486495baef..6dac7c1853a5 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1543,8 +1543,6 @@ static int i8042_probe(struct platform_device *dev)
 {
 	int error;
 
-	i8042_platform_device = dev;
-
 	if (i8042_reset == I8042_RESET_ALWAYS) {
 		error = i8042_controller_selftest();
 		if (error)
@@ -1582,7 +1580,6 @@ static int i8042_probe(struct platform_device *dev)
 	i8042_free_aux_ports();	/* in case KBD failed but AUX not */
 	i8042_free_irqs();
 	i8042_controller_reset(false);
-	i8042_platform_device = NULL;
 
 	return error;
 }
@@ -1592,7 +1589,6 @@ static int i8042_remove(struct platform_device *dev)
 	i8042_unregister_ports();
 	i8042_free_irqs();
 	i8042_controller_reset(false);
-	i8042_platform_device = NULL;
 
 	return 0;
 }
-- 
2.17.1