From: Julia Lawall <julia at 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 = \(f at p\|a(f at p)\); @void_called@ identifier r.f; position p; @@ f at p(...); @called@ identifier r.f; position p1 != void_called.p; @@ f at 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 = \(f at p\|a(f at p)\); @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 at diku.dk> --- drivers/hwmon/vt1211.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c index 12b4359..106b4bc 100644 --- a/drivers/hwmon/vt1211.c +++ b/drivers/hwmon/vt1211.c @@ -1216,7 +1216,7 @@ EXIT: return err; } -static int __devexit vt1211_remove(struct platform_device *pdev) +static void __devexit vt1211_remove(struct platform_device *pdev) { struct vt1211_data *data = platform_get_drvdata(pdev); struct resource *res; @@ -1228,8 +1228,6 @@ static int __devexit vt1211_remove(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_IO, 0); release_region(res->start, res->end - res->start + 1); - - return 0; } static struct platform_driver vt1211_driver = { @@ -1238,7 +1236,7 @@ static struct platform_driver vt1211_driver = { .name = DRVNAME, }, .probe = vt1211_probe, - .remove = __devexit_p(vt1211_remove), + .remove_new = __devexit_p(vt1211_remove), }; static int __init vt1211_device_add(unsigned short address)
