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>

drivers/staging/android/ashmem.c

@@ -16,6 +16,8 @@
 ** GNU General Public License for more details.
 */
 
+#define pr_fmt(fmt) "ashmem: " fmt
+
 #include <linux/module.h>
 #include <linux/file.h>
 #include <linux/fs.h>
@@ -707,7 +709,7 @@ static int __init ashmem_init(void)
 					  sizeof(struct ashmem_area),
 					  0, 0, NULL);
 	if (unlikely(!ashmem_area_cachep)) {
-		printk(KERN_ERR "ashmem: failed to create slab cache\n");
+		pr_err("failed to create slab cache\n");
 		return -ENOMEM;
 	}
 
@@ -715,19 +717,19 @@ static int __init ashmem_init(void)
 					  sizeof(struct ashmem_range),
 					  0, 0, NULL);
 	if (unlikely(!ashmem_range_cachep)) {
-		printk(KERN_ERR "ashmem: failed to create slab cache\n");
+		pr_err("failed to create slab cache\n");
 		return -ENOMEM;
 	}
 
 	ret = misc_register(&ashmem_misc);
 	if (unlikely(ret)) {
-		printk(KERN_ERR "ashmem: failed to register misc device!\n");
+		pr_err("failed to register misc device!\n");
 		return ret;
 	}
 
 	register_shrinker(&ashmem_shrinker);
 
-	printk(KERN_INFO "ashmem: initialized\n");
+	pr_info("initialized\n");
 
 	return 0;
 }
@@ -740,12 +742,12 @@ static void __exit ashmem_exit(void)
 
 	ret = misc_deregister(&ashmem_misc);
 	if (unlikely(ret))
-		printk(KERN_ERR "ashmem: failed to unregister misc device!\n");
+		pr_err("failed to unregister misc device!\n");
 
 	kmem_cache_destroy(ashmem_range_cachep);
 	kmem_cache_destroy(ashmem_area_cachep);
 
-	printk(KERN_INFO "ashmem: unloaded\n");
+	pr_info("unloaded\n");
 }
 
 module_init(ashmem_init);

drivers/staging/android/logger.c

@@ -17,6 +17,8 @@
  * GNU General Public License for more details.
  */
 
+#define pr_fmt(fmt) "logger: " fmt
+
 #include <linux/sched.h>
 #include <linux/module.h>
 #include <linux/fs.h>
@@ -621,12 +623,12 @@ static int __init create_log(char *log_name, int size)
 	/* finally, initialize the misc device for this log */
 	ret = misc_register(&log->misc);
 	if (unlikely(ret)) {
-		printk(KERN_ERR "logger: failed to register misc "
-		       "device for log '%s'!\n", log->misc.name);
+		pr_err("failed to register misc device for log '%s'!\n",
+				log->misc.name);
 		goto out_free_log;
 	}
 
-	printk(KERN_INFO "logger: created %luK log '%s'\n",
+	pr_info("created %luK log '%s'\n",
 		(unsigned long) log->size >> 10, log->misc.name);
 
 	return 0;

drivers/staging/android/ram_console.c

@@ -13,6 +13,8 @@
  *
  */
 
+#define pr_fmt(fmt) "ram_console: " fmt
+
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -162,7 +164,7 @@ static int __init ram_console_late_init(void)
 
 	entry = create_proc_entry("last_kmsg", S_IFREG | S_IRUGO, NULL);
 	if (!entry) {
-		printk(KERN_ERR "ram_console: failed to create proc entry\n");
+		pr_err("failed to create proc entry\n");
 		persistent_ram_free_old(prz);
 		return 0;
 	}

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 @@ int timed_output_dev_register(struct timed_output_dev *tdev)
 
 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;