platform/x86: wmi: Replace kmalloc + sprintf() with kasprintf()

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>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index c0c8945603cb..4e76ffcb5394 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -933,12 +933,11 @@ static int wmi_dev_probe(struct device *dev)
                         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;