Merge branch 'akpm' (incoming from Andrew)

Merge second batch of fixes from Andrew Morton:

 - various misc bits

 - some printk updates

 - a new "SRAM" driver.

 - MAINTAINERS updates

 - the backlight driver queue

 - checkpatch updates

 - a few init/ changes

 - a huge number of drivers/rtc changes

 - fatfs updates

 - some lib/idr.c work

 - some renaming of the random driver interfaces

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (285 commits)
  net: rename random32 to prandom
  net/core: remove duplicate statements by do-while loop
  net/core: rename random32() to prandom_u32()
  net/netfilter: rename random32() to prandom_u32()
  net/sched: rename random32() to prandom_u32()
  net/sunrpc: rename random32() to prandom_u32()
  scsi: rename random32() to prandom_u32()
  lguest: rename random32() to prandom_u32()
  uwb: rename random32() to prandom_u32()
  video/uvesafb: rename random32() to prandom_u32()
  mmc: rename random32() to prandom_u32()
  drbd: rename random32() to prandom_u32()
  kernel/: rename random32() to prandom_u32()
  mm/: rename random32() to prandom_u32()
  lib/: rename random32() to prandom_u32()
  x86: rename random32() to prandom_u32()
  x86: pageattr-test: remove srandom32 call
  uuid: use prandom_bytes()
  raid6test: use prandom_bytes()
  sctp: convert sctp_assoc_set_id() to use idr_alloc_cyclic()
  ...

1 files changed, 15 insertions, 13 deletions

diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index a1e41d4faa7..c84701b7ca6 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -143,13 +143,16 @@ static int adp5520_bl_setup(struct backlight_device *bl)
 static ssize_t adp5520_show(struct device *dev, char *buf, int reg)
 {
 	struct adp5520_bl *data = dev_get_drvdata(dev);
-	int error;
+	int ret;
 	uint8_t reg_val;
 
 	mutex_lock(&data->lock);
-	error = adp5520_read(data->master, reg, &reg_val);
+	ret = adp5520_read(data->master, reg, &reg_val);
 	mutex_unlock(&data->lock);
 
+	if (ret < 0)
+		return ret;
+
 	return sprintf(buf, "%u\n", reg_val);
 }
 
@@ -349,35 +352,34 @@ static int adp5520_bl_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int adp5520_bl_suspend(struct platform_device *pdev,
-				 pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int adp5520_bl_suspend(struct device *dev)
 {
-	struct backlight_device *bl = platform_get_drvdata(pdev);
+	struct backlight_device *bl = dev_get_drvdata(dev);
+
 	return adp5520_bl_set(bl, 0);
 }
 
-static int adp5520_bl_resume(struct platform_device *pdev)
+static int adp5520_bl_resume(struct device *dev)
 {
-	struct backlight_device *bl = platform_get_drvdata(pdev);
+	struct backlight_device *bl = dev_get_drvdata(dev);
 
 	backlight_update_status(bl);
 	return 0;
 }
-#else
-#define adp5520_bl_suspend	NULL
-#define adp5520_bl_resume	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(adp5520_bl_pm_ops, adp5520_bl_suspend,
+			adp5520_bl_resume);
+
 static struct platform_driver adp5520_bl_driver = {
 	.driver		= {
 		.name	= "adp5520-backlight",
 		.owner	= THIS_MODULE,
+		.pm	= &adp5520_bl_pm_ops,
 	},
 	.probe		= adp5520_bl_probe,
 	.remove		= adp5520_bl_remove,
-	.suspend	= adp5520_bl_suspend,
-	.resume		= adp5520_bl_resume,
 };
 
 module_platform_driver(adp5520_bl_driver);