Merge branch 'akpm' (Andrew's patch-bomb)

Merge Andrew's first set of patches:
 "Non-MM patches:

   - lots of misc bits

   - tree-wide have_clk() cleanups

   - quite a lot of printk tweaks.  I draw your attention to "printk:
     convert the format for KERN_<LEVEL> to a 2 byte pattern" which
     looks a bit scary.  But afaict it's solid.

   - backlight updates

   - lib/ feature work (notably the addition and use of memweight())

   - checkpatch updates

   - rtc updates

   - nilfs updates

   - fatfs updates (partial, still waiting for acks)

   - kdump, proc, fork, IPC, sysctl, taskstats, pps, etc

   - new fault-injection feature work"

* Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits)
  drivers/misc/lkdtm.c: fix missing allocation failure check
  lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table()
  fault-injection: add tool to run command with failslab or fail_page_alloc
  fault-injection: add selftests for cpu and memory hotplug
  powerpc: pSeries reconfig notifier error injection module
  memory: memory notifier error injection module
  PM: PM notifier error injection module
  cpu: rewrite cpu-notifier-error-inject module
  fault-injection: notifier error injection
  c/r: fcntl: add F_GETOWNER_UIDS option
  resource: make sure requested range is included in the root range
  include/linux/aio.h: cpp->C conversions
  fs: cachefiles: add support for large files in filesystem caching
  pps: return PTR_ERR on error in device_create
  taskstats: check nla_reserve() return
  sysctl: suppress kmemleak messages
  ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION
  ipc: compat: use signed size_t types for msgsnd and msgrcv
  ipc: allow compat IPC version field parsing if !ARCH_WANT_OLD_COMPAT_IPC
  ipc: add COMPAT_SHMLBA support
  ...

9 files changed, 48 insertions, 97 deletions

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 0443a4f71858..df1cbb7ef6ca 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -127,7 +127,8 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
         struct atmel_pwm_bl *pwmbl;
         int retval;
 
-        pwmbl = kzalloc(sizeof(struct atmel_pwm_bl), GFP_KERNEL);
+        pwmbl = devm_kzalloc(&pdev->dev, sizeof(struct atmel_pwm_bl),
+                                GFP_KERNEL);
         if (!pwmbl)
                 return -ENOMEM;
 
@@ -154,7 +155,8 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
                 goto err_free_mem;
 
         if (pwmbl->gpio_on != -1) {
-                retval = gpio_request(pwmbl->gpio_on, "gpio_atmel_pwm_bl");
+                retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on,
+                                        "gpio_atmel_pwm_bl");
                 if (retval) {
                         pwmbl->gpio_on = -1;
                         goto err_free_pwm;
@@ -164,7 +166,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
                 retval = gpio_direction_output(pwmbl->gpio_on,
                                 0 ^ pdata->on_active_low);
                 if (retval)
-                        goto err_free_gpio;
+                        goto err_free_pwm;
         }
 
         memset(&props, 0, sizeof(struct backlight_properties));
@@ -174,7 +176,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
                                           &atmel_pwm_bl_ops, &props);
         if (IS_ERR(bldev)) {
                 retval = PTR_ERR(bldev);
-                goto err_free_gpio;
+                goto err_free_pwm;
         }
 
         pwmbl->bldev = bldev;
@@ -196,13 +198,9 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 err_free_bl_dev:
         platform_set_drvdata(pdev, NULL);
         backlight_device_unregister(bldev);
-err_free_gpio:
-        if (pwmbl->gpio_on != -1)
-                gpio_free(pwmbl->gpio_on);
 err_free_pwm:
         pwm_channel_free(&pwmbl->pwmc);
 err_free_mem:
-        kfree(pwmbl);
         return retval;
 }
 
@@ -210,15 +208,12 @@ static int __exit atmel_pwm_bl_remove(struct platform_device *pdev)
 {
         struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
 
-        if (pwmbl->gpio_on != -1) {
+        if (pwmbl->gpio_on != -1)
                 gpio_set_value(pwmbl->gpio_on, 0);
-                gpio_free(pwmbl->gpio_on);
-        }
         pwm_channel_disable(&pwmbl->pwmc);
         pwm_channel_free(&pwmbl->pwmc);
         backlight_device_unregister(pwmbl->bldev);
         platform_set_drvdata(pdev, NULL);
-        kfree(pwmbl);
 
         return 0;
 }
diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
index 23d732677ba1..c781768ba892 100644
--- a/drivers/video/backlight/corgi_lcd.c
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -492,7 +492,8 @@ static int setup_gpio_backlight(struct corgi_lcd *lcd,
         lcd->gpio_backlight_cont = -1;
 
         if (gpio_is_valid(pdata->gpio_backlight_on)) {
-                err = gpio_request(pdata->gpio_backlight_on, "BL_ON");
+                err = devm_gpio_request(&spi->dev, pdata->gpio_backlight_on,
+                                        "BL_ON");
                 if (err) {
                         dev_err(&spi->dev, "failed to request GPIO%d for "
                                 "backlight_on\n", pdata->gpio_backlight_on);
@@ -504,11 +505,12 @@ static int setup_gpio_backlight(struct corgi_lcd *lcd,
         }
 
         if (gpio_is_valid(pdata->gpio_backlight_cont)) {
-                err = gpio_request(pdata->gpio_backlight_cont, "BL_CONT");
+                err = devm_gpio_request(&spi->dev, pdata->gpio_backlight_cont,
+                                        "BL_CONT");
                 if (err) {
                         dev_err(&spi->dev, "failed to request GPIO%d for "
                                 "backlight_cont\n", pdata->gpio_backlight_cont);
-                        goto err_free_backlight_on;
+                        return err;
                 }
 
                 lcd->gpio_backlight_cont = pdata->gpio_backlight_cont;
@@ -525,11 +527,6 @@ static int setup_gpio_backlight(struct corgi_lcd *lcd,
                 }
         }
         return 0;
-
-err_free_backlight_on:
-        if (gpio_is_valid(lcd->gpio_backlight_on))
-                gpio_free(lcd->gpio_backlight_on);
-        return err;
 }
 
 static int __devinit corgi_lcd_probe(struct spi_device *spi)
@@ -602,12 +599,6 @@ static int __devexit corgi_lcd_remove(struct spi_device *spi)
         backlight_update_status(lcd->bl_dev);
         backlight_device_unregister(lcd->bl_dev);
 
-        if (gpio_is_valid(lcd->gpio_backlight_on))
-                gpio_free(lcd->gpio_backlight_on);
-
-        if (gpio_is_valid(lcd->gpio_backlight_cont))
-                gpio_free(lcd->gpio_backlight_cont);
-
         corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN);
         lcd_device_unregister(lcd->lcd_dev);
 
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index 40f606a86093..2d90c0648aa0 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -175,28 +175,27 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
 
         priv->spi = spi;
 
-        ret = gpio_request_one(pdata->reset_gpio, GPIOF_OUT_INIT_HIGH,
-                                                "lcd l4f00242t03 reset");
+        ret = devm_gpio_request_one(&spi->dev, pdata->reset_gpio,
+                        GPIOF_OUT_INIT_HIGH, "lcd l4f00242t03 reset");
         if (ret) {
                 dev_err(&spi->dev,
                         "Unable to get the lcd l4f00242t03 reset gpio.\n");
                 return ret;
         }
 
-        ret = gpio_request_one(pdata->data_enable_gpio, GPIOF_OUT_INIT_LOW,
-                                                "lcd l4f00242t03 data enable");
+        ret = devm_gpio_request_one(&spi->dev, pdata->data_enable_gpio,
+                        GPIOF_OUT_INIT_LOW, "lcd l4f00242t03 data enable");
         if (ret) {
                 dev_err(&spi->dev,
                         "Unable to get the lcd l4f00242t03 data en gpio.\n");
-                goto err;
+                return ret;
         }
 
         priv->io_reg = regulator_get(&spi->dev, "vdd");
         if (IS_ERR(priv->io_reg)) {
-                ret = PTR_ERR(priv->io_reg);
                 dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",
                        __func__);
-                goto err2;
+                return PTR_ERR(priv->io_reg);
         }
 
         priv->core_reg = regulator_get(&spi->dev, "vcore");
@@ -204,14 +203,14 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
                 ret = PTR_ERR(priv->core_reg);
                 dev_err(&spi->dev, "%s: Unable to get the core regulator\n",
                        __func__);
-                goto err3;
+                goto err1;
         }
 
         priv->ld = lcd_device_register("l4f00242t03",
                                         &spi->dev, priv, &l4f_ops);
         if (IS_ERR(priv->ld)) {
                 ret = PTR_ERR(priv->ld);
-                goto err4;
+                goto err2;
         }
 
         /* Init the LCD */
@@ -223,14 +222,10 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
 
         return 0;
 
-err4:
+err2:
         regulator_put(priv->core_reg);
-err3:
+err1:
         regulator_put(priv->io_reg);
-err2:
-        gpio_free(pdata->data_enable_gpio);
-err:
-        gpio_free(pdata->reset_gpio);
 
         return ret;
 }
@@ -238,16 +233,12 @@ err:
 static int __devexit l4f00242t03_remove(struct spi_device *spi)
 {
         struct l4f00242t03_priv *priv = dev_get_drvdata(&spi->dev);
-        struct l4f00242t03_pdata *pdata = priv->spi->dev.platform_data;
 
         l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN);
         lcd_device_unregister(priv->ld);
 
         dev_set_drvdata(&spi->dev, NULL);
 
-        gpio_free(pdata->data_enable_gpio);
-        gpio_free(pdata->reset_gpio);
-
         regulator_put(priv->io_reg);
         regulator_put(priv->core_reg);
 
diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index bebeb63607db..18dca0c29c68 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -295,7 +295,7 @@ static int __devinit lm3533_bl_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
-        bl = kzalloc(sizeof(*bl), GFP_KERNEL);
+        bl = devm_kzalloc(&pdev->dev, sizeof(*bl), GFP_KERNEL);
         if (!bl) {
                 dev_err(&pdev->dev,
                                 "failed to allocate memory for backlight\n");
@@ -317,8 +317,7 @@ static int __devinit lm3533_bl_probe(struct platform_device *pdev)
                                                 &lm3533_bl_ops, &props);
         if (IS_ERR(bd)) {
                 dev_err(&pdev->dev, "failed to register backlight device\n");
-                ret = PTR_ERR(bd);
-                goto err_free;
+                return PTR_ERR(bd);
         }
 
         bl->bd = bd;
@@ -348,8 +347,6 @@ err_sysfs_remove:
         sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
 err_unregister:
         backlight_device_unregister(bd);
-err_free:
-        kfree(bl);
 
         return ret;
 }
@@ -367,7 +364,6 @@ static int __devexit lm3533_bl_remove(struct platform_device *pdev)
         lm3533_ctrlbank_disable(&bl->cb);
         sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
         backlight_device_unregister(bd);
-        kfree(bl);
 
         return 0;
 }
diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c
index a9f2c36966f1..ea43f2254196 100644
--- a/drivers/video/backlight/lms283gf05.c
+++ b/drivers/video/backlight/lms283gf05.c
@@ -158,29 +158,27 @@ static int __devinit lms283gf05_probe(struct spi_device *spi)
         int ret = 0;
 
         if (pdata != NULL) {
-                ret = gpio_request(pdata->reset_gpio, "LMS285GF05 RESET");
+                ret = devm_gpio_request(&spi->dev, pdata->reset_gpio,
+                                        "LMS285GF05 RESET");
                 if (ret)
                         return ret;
 
                 ret = gpio_direction_output(pdata->reset_gpio,
                                                 !pdata->reset_inverted);
                 if (ret)
-                        goto err;
+                        return ret;
         }
 
         st = devm_kzalloc(&spi->dev, sizeof(struct lms283gf05_state),
                                 GFP_KERNEL);
         if (st == NULL) {
                 dev_err(&spi->dev, "No memory for device state\n");
-                ret = -ENOMEM;
-                goto err;
+                return -ENOMEM;
         }
 
         ld = lcd_device_register("lms283gf05", &spi->dev, st, &lms_ops);
-        if (IS_ERR(ld)) {
-                ret = PTR_ERR(ld);
-                goto err;
-        }
+        if (IS_ERR(ld))
+                return PTR_ERR(ld);
 
         st->spi = spi;
         st->ld = ld;
@@ -193,24 +191,14 @@ static int __devinit lms283gf05_probe(struct spi_device *spi)
         lms283gf05_toggle(spi, disp_initseq, ARRAY_SIZE(disp_initseq));
 
         return 0;
-
-err:
-        if (pdata != NULL)
-                gpio_free(pdata->reset_gpio);
-
-        return ret;
 }
 
 static int __devexit lms283gf05_remove(struct spi_device *spi)
 {
         struct lms283gf05_state *st = dev_get_drvdata(&spi->dev);
-        struct lms283gf05_pdata *pdata = st->spi->dev.platform_data;
 
         lcd_device_unregister(st->ld);
 
-        if (pdata != NULL)
-                gpio_free(pdata->reset_gpio);
-
         return 0;
 }
 
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index 72a0e0c917cf..aa6d4f71131f 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -14,11 +14,15 @@
 #include <linux/i2c.h>
 #include <linux/backlight.h>
 #include <linux/err.h>
-#include <linux/lp855x.h>
+#include <linux/platform_data/lp855x.h>
 
 /* Registers */
-#define BRIGHTNESS_CTRL         (0x00)
-#define DEVICE_CTRL             (0x01)
+#define BRIGHTNESS_CTRL         0x00
+#define DEVICE_CTRL             0x01
+#define EEPROM_START            0xA0
+#define EEPROM_END              0xA7
+#define EPROM_START             0xA0
+#define EPROM_END               0xAF
 
 #define BUF_SIZE                20
 #define DEFAULT_BL_NAME         "lcd-backlight"
diff --git a/drivers/video/backlight/ot200_bl.c b/drivers/video/backlight/ot200_bl.c
index f519d55a294c..469cf0f109d2 100644
--- a/drivers/video/backlight/ot200_bl.c
+++ b/drivers/video/backlight/ot200_bl.c
@@ -84,7 +84,8 @@ static int ot200_backlight_probe(struct platform_device *pdev)
         int retval = 0;
 
         /* request gpio */
-        if (gpio_request(GPIO_DIMM, "ot200 backlight dimmer") < 0) {
+        if (devm_gpio_request(&pdev->dev, GPIO_DIMM,
+                                "ot200 backlight dimmer") < 0) {
                 dev_err(&pdev->dev, "failed to request GPIO %d\n", GPIO_DIMM);
                 return -ENODEV;
         }
@@ -93,14 +94,13 @@ static int ot200_backlight_probe(struct platform_device *pdev)
         pwm_timer = cs5535_mfgpt_alloc_timer(7, MFGPT_DOMAIN_ANY);
         if (!pwm_timer) {
                 dev_err(&pdev->dev, "MFGPT 7 not available\n");
-                retval = -ENODEV;
-                goto error_mfgpt_alloc;
+                return -ENODEV;
         }
 
-        data = kzalloc(sizeof(*data), GFP_KERNEL);
+        data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
         if (!data) {
                 retval = -ENOMEM;
-                goto error_kzalloc;
+                goto error_devm_kzalloc;
         }
 
         /* setup gpio */
@@ -122,26 +122,21 @@ static int ot200_backlight_probe(struct platform_device *pdev)
         if (IS_ERR(bl)) {
                 dev_err(&pdev->dev, "failed to register backlight\n");
                 retval = PTR_ERR(bl);
-                goto error_backlight_device_register;
+                goto error_devm_kzalloc;
         }
 
         platform_set_drvdata(pdev, bl);
 
         return 0;
 
-error_backlight_device_register:
-        kfree(data);
-error_kzalloc:
+error_devm_kzalloc:
         cs5535_mfgpt_free_timer(pwm_timer);
-error_mfgpt_alloc:
-        gpio_free(GPIO_DIMM);
         return retval;
 }
 
 static int ot200_backlight_remove(struct platform_device *pdev)
 {
         struct backlight_device *bl = platform_get_drvdata(pdev);
-        struct ot200_backlight_data *data = bl_get_data(bl);
 
         backlight_device_unregister(bl);
 
@@ -152,9 +147,7 @@ static int ot200_backlight_remove(struct platform_device *pdev)
                 MAX_COMP2 - dim_table[100]);
 
         cs5535_mfgpt_free_timer(pwm_timer);
-        gpio_free(GPIO_DIMM);
 
-        kfree(data);
         return 0;
 }
 
diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index 0d54e607e82d..49342e1d20be 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -92,14 +92,14 @@ static int __devinit tosa_bl_probe(struct i2c_client *client,
 
         data->comadj = sharpsl_param.comadj == -1 ? COMADJ_DEFAULT : sharpsl_param.comadj;
 
-        ret = gpio_request(TOSA_GPIO_BL_C20MA, "backlight");
+        ret = devm_gpio_request(&client->dev, TOSA_GPIO_BL_C20MA, "backlight");
         if (ret) {
                 dev_dbg(&data->bl->dev, "Unable to request gpio!\n");
                 return ret;
         }
         ret = gpio_direction_output(TOSA_GPIO_BL_C20MA, 0);
         if (ret)
-                goto err_gpio_dir;
+                return ret;
 
         i2c_set_clientdata(client, data);
         data->i2c = client;
@@ -123,8 +123,6 @@ static int __devinit tosa_bl_probe(struct i2c_client *client,
 
 err_reg:
         data->bl = NULL;
-err_gpio_dir:
-        gpio_free(TOSA_GPIO_BL_C20MA);
         return ret;
 }
 
@@ -135,8 +133,6 @@ static int __devexit tosa_bl_remove(struct i2c_client *client)
         backlight_device_unregister(data->bl);
         data->bl = NULL;
 
-        gpio_free(TOSA_GPIO_BL_C20MA);
-
         return 0;
 }
 
diff --git a/drivers/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c
index 47823b8efff0..33047a66cc24 100644
--- a/drivers/video/backlight/tosa_lcd.c
+++ b/drivers/video/backlight/tosa_lcd.c
@@ -193,7 +193,7 @@ static int __devinit tosa_lcd_probe(struct spi_device *spi)
         data->spi = spi;
         dev_set_drvdata(&spi->dev, data);
 
-        ret = gpio_request(TOSA_GPIO_TG_ON, "tg #pwr");
+        ret = devm_gpio_request(&spi->dev, TOSA_GPIO_TG_ON, "tg #pwr");
         if (ret < 0)
                 goto err_gpio_tg;
 
@@ -201,7 +201,7 @@ static int __devinit tosa_lcd_probe(struct spi_device *spi)
 
         ret = gpio_direction_output(TOSA_GPIO_TG_ON, 0);
         if (ret < 0)
-                goto err_gpio_dir;
+                goto err_gpio_tg;
 
         mdelay(60);
         tosa_lcd_tg_init(data);
@@ -221,8 +221,6 @@ static int __devinit tosa_lcd_probe(struct spi_device *spi)
 
 err_register:
         tosa_lcd_tg_off(data);
-err_gpio_dir:
-        gpio_free(TOSA_GPIO_TG_ON);
 err_gpio_tg:
         dev_set_drvdata(&spi->dev, NULL);
         return ret;
@@ -239,7 +237,6 @@ static int __devexit tosa_lcd_remove(struct spi_device *spi)
 
         tosa_lcd_tg_off(data);
 
-        gpio_free(TOSA_GPIO_TG_ON);
         dev_set_drvdata(&spi->dev, NULL);
 
         return 0;