Merge branch 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull devm usage cleanup from Wolfram Sang:
 "Lately, I have been experimenting how to improve the devm interface to
  make writing device drivers easier and less error prone while also
  getting rid of its subtle issues.  I think it has more potential but
  still needs work and definately conistency, especiall in its usage.

  The first thing I come up with is a low hanging fruit regarding
  devm_ioremap_resouce().  This function already checks if the passed
  resource is valid and gives an error message if not.  So, we can
  remove similar checks from the drivers and get rid of a bit of code
  and a number of inconsistent error strings.

  This series only removes the unneeded check iff devm_ioremap_resource
  follows platform_get_resource directly.  The previous version tried to
  shuffle code if needed, too, what lead to an embarrasing bug.  It
  turned out to me that shuffling code for all cases found will make the
  automated script too complex, so I am unsure if an automated cleanup
  is the proper tool for this case.  Removing the easy stuff seems
  worthwhile to me, though.

  Despite various architectures and platform dependencies, I managed to
  compile test 45 out of 57 modified files locally using heuristics and
  defconfigs."

Pulled because: 296 deletions, 0 additions.

* 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (33 commits)
  sound/soc/kirkwood: don't check resource with devm_ioremap_resource
  sound/soc/fsl: don't check resource with devm_ioremap_resource
  arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
  arch/arm/plat-samsung: don't check resource with devm_ioremap_resource
  arch/arm/mach-tegra: don't check resource with devm_ioremap_resource
  drivers/watchdog: don't check resource with devm_ioremap_resource
  drivers/w1/masters: don't check resource with devm_ioremap_resource
  drivers/video/omap2/dss: don't check resource with devm_ioremap_resource
  drivers/video/omap2: don't check resource with devm_ioremap_resource
  drivers/usb/phy: don't check resource with devm_ioremap_resource
  drivers/usb/host: don't check resource with devm_ioremap_resource
  drivers/usb/gadget: don't check resource with devm_ioremap_resource
  drivers/usb/chipidea: don't check resource with devm_ioremap_resource
  drivers/thermal: don't check resource with devm_ioremap_resource
  drivers/staging/nvec: don't check resource with devm_ioremap_resource
  drivers/staging/dwc2: don't check resource with devm_ioremap_resource
  drivers/spi: don't check resource with devm_ioremap_resource
  drivers/rtc: don't check resource with devm_ioremap_resource
  drivers/pwm: don't check resource with devm_ioremap_resource
  drivers/pinctrl: don't check resource with devm_ioremap_resource
  ...

2 files changed, 0 insertions, 11 deletions

diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c
index 4ca35e8a5d8..19a12ac64a9 100644
--- a/drivers/char/hw_random/mxc-rnga.c
+++ b/drivers/char/hw_random/mxc-rnga.c
@@ -167,11 +167,6 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
 	clk_prepare_enable(mxc_rng->clk);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		err = -ENOENT;
-		goto err_region;
-	}
-
 	mxc_rng->mem = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(mxc_rng->mem)) {
 		err = PTR_ERR(mxc_rng->mem);
@@ -189,7 +184,6 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
 	return 0;
 
 err_ioremap:
-err_region:
 	clk_disable_unprepare(mxc_rng->clk);
 
 out:
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 749dc16ca2c..d2903e77227 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -119,11 +119,6 @@ static int omap_rng_probe(struct platform_device *pdev)
 	dev_set_drvdata(&pdev->dev, priv);
 
 	priv->mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!priv->mem_res) {
-		ret = -ENOENT;
-		goto err_ioremap;
-	}
-
 	priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res);
 	if (IS_ERR(priv->base)) {
 		ret = PTR_ERR(priv->base);