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Subject[PATCH 23/28] drivers/hwmon/f71805f.c: Drop return value from platform_driver remove functions
From: Julia Lawall <julia@diku.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@diku.dk>

---
drivers/hwmon/f71805f.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c
index 7a14a2d..76842db 100644
--- a/drivers/hwmon/f71805f.c
+++ b/drivers/hwmon/f71805f.c
@@ -1408,7 +1408,7 @@ exit:
return err;
}

-static int __devexit f71805f_remove(struct platform_device *pdev)
+static void __devexit f71805f_remove(struct platform_device *pdev)
{
struct f71805f_data *data = platform_get_drvdata(pdev);
struct resource *res;
@@ -1424,8 +1424,6 @@ static int __devexit f71805f_remove(struct platform_device *pdev)

res = platform_get_resource(pdev, IORESOURCE_IO, 0);
release_region(res->start + ADDR_REG_OFFSET, 2);
-
- return 0;
}

static struct platform_driver f71805f_driver = {
@@ -1434,7 +1432,7 @@ static struct platform_driver f71805f_driver = {
.name = DRVNAME,
},
.probe = f71805f_probe,
- .remove = __devexit_p(f71805f_remove),
+ .remove_new = __devexit_p(f71805f_remove),
};

static int __init f71805f_device_add(unsigned short address,

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