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Date: Wed, 10 Dec 2008 17:39:41 +0100 (CET)
From: Julia Lawall <julia@...u.dk>
To: dmitri.vorobiev@...ial.fi, eric.miao@...vell.com,
linux@....linux.org.uk, linux-arm-kernel@...ts.arm.linux.org.uk,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 19/28] arch/arm/mach-pxa: Drop return value from platform_driver
remove functions
From: Julia Lawall <julia@...u.dk>
The return value of the remove function of a driver structure, and thus of
a platform_driver structure, is ultimately ignored, and is thus
unnecessary. This patch removes the return value for the remove function
stored in a platform_driver structure. For the files in this patch, the
return values are always 0.
A simplified version of the semantic patch that makes this change is as
follows: (http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r@
struct platform_driver I;
identifier a,f;
position p;
@@
I.remove = \(f@p\|a(f@p)\);
@void_called@
identifier r.f;
position p;
@@
f@p(...);
@called@
identifier r.f;
position p1 != void_called.p;
@@
f@p1(...)
@localfn@
identifier r.f;
@@
static int f(...) { ... }
@depends on !called && localfn@
struct platform_driver I;
identifier a,f;
position r.p;
@@
I.
- remove
+ remove_new
= \(f@p\|a(f@p)\);
@depends on !called && localfn@
identifier r.f,i;
constant C;
expression E;
@@
- int
+ void
f(...) {
<...
(
- return \(C\|i\);
+ return;
|
- return E;
+ E;
+ return;
)
...>
}
// </smpl>
Signed-off-by: Julia Lawall <julia@...u.dk>
---
arch/arm/mach-pxa/corgi_ssp.c | 5 ++---
arch/arm/mach-pxa/mioa701.c | 5 ++---
arch/arm/mach-pxa/pwm.c | 9 ++++-----
arch/arm/mach-pxa/ssp.c | 11 +++++------
arch/arm/mach-pxa/tosa-bt.c | 6 ++----
5 files changed, 15 insertions(+), 21 deletions(-)
diff --git a/arch/arm/mach-pxa/corgi_ssp.c b/arch/arm/mach-pxa/corgi_ssp.c
index 8e2f221..a0e823d 100644
--- a/arch/arm/mach-pxa/corgi_ssp.c
+++ b/arch/arm/mach-pxa/corgi_ssp.c
@@ -230,10 +230,9 @@ static int __init corgi_ssp_probe(struct platform_device *dev)
return ret;
}
-static int corgi_ssp_remove(struct platform_device *dev)
+static void corgi_ssp_remove(struct platform_device *dev)
{
ssp_exit(&corgi_ssp_dev);
- return 0;
}
static int corgi_ssp_suspend(struct platform_device *dev, pm_message_t state)
@@ -260,7 +259,7 @@ static int corgi_ssp_resume(struct platform_device *dev)
static struct platform_driver corgissp_driver = {
.probe = corgi_ssp_probe,
- .remove = corgi_ssp_remove,
+ .remove_new = corgi_ssp_remove,
.suspend = corgi_ssp_suspend,
.resume = corgi_ssp_resume,
.driver = {
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 782903f..8f965d0 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -775,10 +775,9 @@ static int battery_probe(struct platform_device *pdev)
return rc;
}
-static int battery_remove(struct platform_device *pdev)
+static void battery_remove(struct platform_device *pdev)
{
battery_wm = NULL;
- return 0;
}
static struct platform_driver mioa701_battery_driver = {
@@ -786,7 +785,7 @@ static struct platform_driver mioa701_battery_driver = {
.name = "wm97xx-battery",
},
.probe = battery_probe,
- .remove = battery_remove
+ .remove_new = battery_remove
};
static int __init mioa701_battery_init(void)
diff --git a/arch/arm/mach-pxa/pwm.c b/arch/arm/mach-pxa/pwm.c
index 74e2ead..43b4be6 100644
--- a/arch/arm/mach-pxa/pwm.c
+++ b/arch/arm/mach-pxa/pwm.c
@@ -250,14 +250,14 @@ static int __devinit pxa27x_pwm_probe(struct platform_device *pdev)
return 0;
}
-static int __devexit pwm_remove(struct platform_device *pdev)
+static void __devexit pwm_remove(struct platform_device *pdev)
{
struct pwm_device *pwm;
struct resource *r;
pwm = platform_get_drvdata(pdev);
if (pwm == NULL)
- return -ENODEV;
+ return;
mutex_lock(&pwm_lock);
list_del(&pwm->node);
@@ -270,7 +270,6 @@ static int __devexit pwm_remove(struct platform_device *pdev)
clk_put(pwm->clk);
kfree(pwm);
- return 0;
}
static struct platform_driver pxa25x_pwm_driver = {
@@ -278,7 +277,7 @@ static struct platform_driver pxa25x_pwm_driver = {
.name = "pxa25x-pwm",
},
.probe = pxa25x_pwm_probe,
- .remove = __devexit_p(pwm_remove),
+ .remove_new = __devexit_p(pwm_remove),
};
static struct platform_driver pxa27x_pwm_driver = {
@@ -286,7 +285,7 @@ static struct platform_driver pxa27x_pwm_driver = {
.name = "pxa27x-pwm",
},
.probe = pxa27x_pwm_probe,
- .remove = __devexit_p(pwm_remove),
+ .remove_new = __devexit_p(pwm_remove),
};
static int __init pwm_init(void)
diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
index 2c31ec7..a1e94f7 100644
--- a/arch/arm/mach-pxa/ssp.c
+++ b/arch/arm/mach-pxa/ssp.c
@@ -434,14 +434,14 @@ err_free:
return ret;
}
-static int __devexit ssp_remove(struct platform_device *pdev)
+static void __devexit ssp_remove(struct platform_device *pdev)
{
struct resource *res;
struct ssp_device *ssp;
ssp = platform_get_drvdata(pdev);
if (ssp == NULL)
- return -ENODEV;
+ return;
iounmap(ssp->mmio_base);
@@ -455,7 +455,6 @@ static int __devexit ssp_remove(struct platform_device *pdev)
mutex_unlock(&ssp_lock);
kfree(ssp);
- return 0;
}
static int __devinit pxa25x_ssp_probe(struct platform_device *pdev)
@@ -478,7 +477,7 @@ static struct platform_driver pxa25x_ssp_driver = {
.name = "pxa25x-ssp",
},
.probe = pxa25x_ssp_probe,
- .remove = __devexit_p(ssp_remove),
+ .remove_new = __devexit_p(ssp_remove),
};
static struct platform_driver pxa25x_nssp_driver = {
@@ -486,7 +485,7 @@ static struct platform_driver pxa25x_nssp_driver = {
.name = "pxa25x-nssp",
},
.probe = pxa25x_nssp_probe,
- .remove = __devexit_p(ssp_remove),
+ .remove_new = __devexit_p(ssp_remove),
};
static struct platform_driver pxa27x_ssp_driver = {
@@ -494,7 +493,7 @@ static struct platform_driver pxa27x_ssp_driver = {
.name = "pxa27x-ssp",
},
.probe = pxa27x_ssp_probe,
- .remove = __devexit_p(ssp_remove),
+ .remove_new = __devexit_p(ssp_remove),
};
static int __init pxa_ssp_init(void)
diff --git a/arch/arm/mach-pxa/tosa-bt.c b/arch/arm/mach-pxa/tosa-bt.c
index fb0294b..d0039bd 100644
--- a/arch/arm/mach-pxa/tosa-bt.c
+++ b/arch/arm/mach-pxa/tosa-bt.c
@@ -106,7 +106,7 @@ err_reset:
return rc;
}
-static int __devexit tosa_bt_remove(struct platform_device *dev)
+static void __devexit tosa_bt_remove(struct platform_device *dev)
{
struct tosa_bt_data *data = dev->dev.platform_data;
struct rfkill *rfk = platform_get_drvdata(dev);
@@ -121,13 +121,11 @@ static int __devexit tosa_bt_remove(struct platform_device *dev)
gpio_free(data->gpio_pwr);
gpio_free(data->gpio_reset);
-
- return 0;
}
static struct platform_driver tosa_bt_driver = {
.probe = tosa_bt_probe,
- .remove = __devexit_p(tosa_bt_remove),
+ .remove_new = __devexit_p(tosa_bt_remove),
.driver = {
.name = "tosa-bt",
--
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