From: Christophe Lucas <clucas@rotomalug.org>
Date: Sat, 10 Sep 2005 07:26:32 +0000 (-0700)
Subject: [PATCH] drivers/char/lcd.c: misc_register() can fail
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cf85d5ca880c9611906e0ca0c729fdf01c724501;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] drivers/char/lcd.c: misc_register() can fail

Signed-off-by: Christophe Lucas <clucas@rotomalug.org>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/char/lcd.c b/drivers/char/lcd.c
index cf01a720eb2e..b77161146144 100644
--- a/drivers/char/lcd.c
+++ b/drivers/char/lcd.c
@@ -613,10 +613,15 @@ static struct miscdevice lcd_dev = {
 
 static int lcd_init(void)
 {
+	int ret;
 	unsigned long data;
 
 	pr_info("%s\n", LCD_DRIVER);
-	misc_register(&lcd_dev);
+	ret = misc_register(&lcd_dev);
+	if (ret) {
+		printk(KERN_WARNING LCD "Unable to register misc device.\n");
+		return ret;
+	}
 
 	/* Check region? Naaah! Just snarf it up. */
 /*	request_region(RTC_PORT(0), RTC_IO_EXTENT, "lcd");*/