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authorSF Markus Elfring <elfring@users.sourceforge.net>2014-10-22 20:00:17 +0200
committerJoerg Roedel <jroedel@suse.de>2014-10-23 14:47:40 +0200
commitc72acf69e2c0d884023296d0cceb16f3e75c09d9 (patch)
tree9f2e38a18b08dd299a2f6f3fad0beda53ac6580d /drivers
parentLinux 3.18-rc1 (diff)
downloadlinux-c72acf69e2c0d884023296d0cceb16f3e75c09d9.tar.xz
linux-c72acf69e2c0d884023296d0cceb16f3e75c09d9.zip
iommu/msm: Deletion of unnecessary checks before clk_disable()
A semantic patch approach was proposed with the subject "[PATCH with Coccinelle?] Deletion of unnecessary checks before specific function calls" on 2014-03-05. https://lkml.org/lkml/2014/3/5/344 http://article.gmane.org/gmane.comp.version-control.coccinelle/3513/ This patch pattern application was repeated with the help of the software "Coccinelle 1.0.0-rc22" on the source files for Linux 3.17.1. An extract of the automatically generated update suggestions is shown here. It was determined that the affected source code places call functions which perform input parameter validation already. It is therefore not needed that a similar safety check is repeated at the call site. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iommu/msm_iommu.c3
-rw-r--r--drivers/iommu/msm_iommu_dev.c6
2 files changed, 3 insertions, 6 deletions
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 6e3dcc289d59..3e4d888bef2b 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -73,8 +73,7 @@ fail:
static void __disable_clocks(struct msm_iommu_drvdata *drvdata)
{
- if (drvdata->clk)
- clk_disable(drvdata->clk);
+ clk_disable(drvdata->clk);
clk_disable(drvdata->pclk);
}
diff --git a/drivers/iommu/msm_iommu_dev.c b/drivers/iommu/msm_iommu_dev.c
index 61def7cb5263..9574d217227c 100644
--- a/drivers/iommu/msm_iommu_dev.c
+++ b/drivers/iommu/msm_iommu_dev.c
@@ -224,8 +224,7 @@ static int msm_iommu_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, drvdata);
- if (iommu_clk)
- clk_disable(iommu_clk);
+ clk_disable(iommu_clk);
clk_disable(iommu_pclk);
@@ -323,8 +322,7 @@ static int msm_iommu_ctx_probe(struct platform_device *pdev)
SET_NSCFG(drvdata->base, mid, 3);
}
- if (drvdata->clk)
- clk_disable(drvdata->clk);
+ clk_disable(drvdata->clk);
clk_disable(drvdata->pclk);
dev_info(&pdev->dev, "context %s using bank %d\n", c->name, c->num);