unicore32: pwm: Remove unnecessary indirection

Calling the actual probing function through a proxy isn't required and
makes the code needlessly complex.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Qin Rui <qinrui@mprc.pku.edu.cn>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>

1 files changed, 6 insertions, 17 deletions

diff --git a/arch/unicore32/kernel/pwm.c b/arch/unicore32/kernel/pwm.c
index 012c54a8019..7e234700d80 100644
--- a/arch/unicore32/kernel/pwm.c
+++ b/arch/unicore32/kernel/pwm.c
@@ -156,8 +156,7 @@ static inline void __add_pwm(struct pwm_device *pwm)
         mutex_unlock(&pwm_lock);
 }
 
-static struct pwm_device *pwm_probe(struct platform_device *pdev,
-                unsigned int pwm_id, struct pwm_device *parent_pwm)
+static int __devinit pwm_probe(struct platform_device *pdev)
 {
         struct pwm_device *pwm;
         struct resource *r;
@@ -166,7 +165,7 @@ static struct pwm_device *pwm_probe(struct platform_device *pdev,
         pwm = kzalloc(sizeof(struct pwm_device), GFP_KERNEL);
         if (pwm == NULL) {
                 dev_err(&pdev->dev, "failed to allocate memory\n");
-                return ERR_PTR(-ENOMEM);
+                return -ENOMEM;
         }
 
         pwm->clk = clk_get(NULL, "OST_CLK");
@@ -177,7 +176,7 @@ static struct pwm_device *pwm_probe(struct platform_device *pdev,
         pwm->clk_enabled = 0;
 
         pwm->use_count = 0;
-        pwm->pwm_id = pwm_id;
+        pwm->pwm_id = pdev->id;
         pwm->pdev = pdev;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -203,7 +202,7 @@ static struct pwm_device *pwm_probe(struct platform_device *pdev,
 
         __add_pwm(pwm);
         platform_set_drvdata(pdev, pwm);
-        return pwm;
+        return 0;
 
 err_release_mem:
         release_mem_region(r->start, resource_size(r));
@@ -211,17 +210,7 @@ err_free_clk:
         clk_put(pwm->clk);
 err_free:
         kfree(pwm);
-        return ERR_PTR(ret);
-}
-
-static int __devinit puv3_pwm_probe(struct platform_device *pdev)
-{
-        struct pwm_device *pwm = pwm_probe(pdev, pdev->id, NULL);
-
-        if (IS_ERR(pwm))
-                return PTR_ERR(pwm);
-
-        return 0;
+        return ret;
 }
 
 static int __devexit pwm_remove(struct platform_device *pdev)
@@ -251,7 +240,7 @@ static struct platform_driver puv3_pwm_driver = {
         .driver         = {
                 .name   = "PKUnity-v3-PWM",
         },
-        .probe          = puv3_pwm_probe,
+        .probe          = pwm_probe,
         .remove         = __devexit_p(pwm_remove),
 };
 module_platform_driver(puv3_pwm_driver);