staging: Android: Fix some checkpatch warnings

Warnings reported by checkpatch.pl have been fixed.

Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
index 38d930c..ec9e2ae 100644
--- a/drivers/staging/android/timed_output.c
+++ b/drivers/staging/android/timed_output.c
@@ -14,6 +14,8 @@
  *
  */
 
+#define pr_fmt(fmt) "timed_output: " fmt
+
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -90,7 +92,7 @@
 
 err_create_file:
 	device_destroy(timed_output_class, MKDEV(0, tdev->index));
-	printk(KERN_ERR "timed_output: Failed to register driver %s\n",
+	pr_err("failed to register driver %s\n",
 			tdev->name);
 
 	return ret;