[PATCH] hp_sdc_rtc.c: audit return codes

From: Christophe Lucas <clucas@rotomalug.org>

Audit return codes (and handle failure correctly) for misc_register and
create_proc_read_entry.

Signed-off-by: Christophe Lucas <clucas@rotomalug.org>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/input/misc/hp_sdc_rtc.c
===================================================================
--- linux-kj.orig/drivers/input/misc/hp_sdc_rtc.c	2005-09-21 01:19:23.000000000 +0400
+++ linux-kj/drivers/input/misc/hp_sdc_rtc.c	2005-09-21 01:25:42.000000000 +0400
@@ -697,14 +697,24 @@ static struct miscdevice hp_sdc_rtc_dev 
 static int __init hp_sdc_rtc_init(void)
 {
 	int ret;
+	struct proc_dir_entry* proc_de;
 
 	init_MUTEX(&i8042tregs);
 
 	if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
 		return ret;
-	misc_register(&hp_sdc_rtc_dev);
-        create_proc_read_entry ("driver/rtc", 0, 0, 
+	ret = misc_register(&hp_sdc_rtc_dev);
+	if (ret) {
+		printk(KERN_WARNING "hp_sdc_rtc: "
+				"Unable to register misc device.\n");
+		return ret;
+	}
+	proc_de = create_proc_read_entry("driver/rtc", 0, 0,
 				hp_sdc_rtc_read_proc, NULL);
+	if (proc_de == NULL) {
+		printk(KERN_WARNING "hp_sdc_rtc: "
+				"Unable to create proc dir entry.\n");
+	}
 
 	printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded "
 			 "(RTC v " RTC_VERSION ")\n");