From 7f166addbebdcaeefe36997d5b8dceb96c5619fa Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 16 Feb 2018 17:40:24 +0200
Subject: [PATCH] platform/x86: wmi: Replace kmalloc + sprintf() with kasprintf()
Git-commit: 7f166addbebdcaeefe36997d5b8dceb96c5619fa
Patch-mainline: v4.17-rc1
References: FATE#325842

kasprintf() does the job of two: kmalloc() and sprintf().
Replace two calls with one.

Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/platform/x86/wmi.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -933,12 +933,11 @@ static int wmi_dev_probe(struct device *
 			goto probe_failure;
 		}
 
-		buf = kmalloc(strlen(wdriver->driver.name) + 5, GFP_KERNEL);
+		buf = kasprintf(GFP_KERNEL, "wmi/%s", wdriver->driver.name);
 		if (!buf) {
 			ret = -ENOMEM;
 			goto probe_string_failure;
 		}
-		sprintf(buf, "wmi/%s", wdriver->driver.name);
 		wblock->char_dev.minor = MISC_DYNAMIC_MINOR;
 		wblock->char_dev.name = buf;
 		wblock->char_dev.fops = &wmi_fops;