staging: vt6655: Remove NULL check before kfree

This patch was generated by the following semantic patch:
// <smpl>
@@ expression E; @@
- if (E != NULL) { kfree(E); }
+ kfree(E);

@@ expression E; @@
- if (E != NULL) { kfree(E); E = NULL; }
+ kfree(E);
+ E = NULL;
// </smpl>
Signed-off-by: NIlia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/vt6655/device_main.c

@@ -3064,8 +3064,7 @@ else {
 }
 
 error1:
-  if(buffer)
-  	 kfree(buffer);
+  kfree(buffer);
 
   if(filp_close(filp,NULL))
        printk("Config_FileOperation:close file fail\n");

drivers/staging/vt6655/hostap.c

@@ -860,8 +860,7 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 	}
 
  out:
-	if (param != NULL)
-		kfree(param);
+	kfree(param);
 
 	return ret;
 }

drivers/staging/vt6655/wpactl.c

@@ -987,8 +987,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
 	}
 
 out:
-	if (param != NULL)
-		kfree(param);
+	kfree(param);
 
 	return ret;
 }