Messages in this thread Patch in this message | | | Date | Wed, 10 Dec 2008 17:37:59 +0100 (CET) | From | Julia Lawall <> | Subject | [PATCH 16/28] arch/blackfin: Drop return value from platform_driver remove functions |
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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 file in this patch, the original return value might have been something other than 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>
--- arch/blackfin/mach-common/dpmc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/blackfin/mach-common/dpmc.c b/arch/blackfin/mach-common/dpmc.c index 02c7efd..72e408d 100644 --- a/arch/blackfin/mach-common/dpmc.c +++ b/arch/blackfin/mach-common/dpmc.c @@ -99,16 +99,16 @@ static int __devinit bfin_dpmc_probe(struct platform_device *pdev) /** * bfin_dpmc_remove - */ -static int __devexit bfin_dpmc_remove(struct platform_device *pdev) +static void __devexit bfin_dpmc_remove(struct platform_device *pdev) { pdata = NULL; - return cpufreq_unregister_notifier(&vreg_cpufreq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); + cpufreq_unregister_notifier(&vreg_cpufreq_notifier_block, + CPUFREQ_TRANSITION_NOTIFIER); } struct platform_driver bfin_dpmc_device_driver = { .probe = bfin_dpmc_probe, - .remove = __devexit_p(bfin_dpmc_remove), + .remove_new = __devexit_p(bfin_dpmc_remove), .driver = { .name = DRIVER_NAME, }
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