Messages in this thread | | | Date | Wed, 13 Aug 2014 15:22:12 -0700 | From | Brian Norris <> | Subject | Re: [PATCH 11/14] ARM: brcmstb: delete unneeded test before of_node_put |
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Hi Julia,
On Fri, Aug 08, 2014 at 12:07:52PM +0200, Julia Lawall wrote: > From: Julia Lawall <Julia.Lawall@lip6.fr> > > Simplify the error path to avoid calling of_node_put when it is not needed. > > The semantic patch that finds this problem is as follows: > (http://coccinelle.lip6.fr/) > > // <smpl> > @@ > expression e; > @@ > > -if (e) > of_node_put(e); > // </smpl> > > Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> > > --- > arch/arm/mach-bcm/platsmp-brcmstb.c | 14 ++++++--------
This file is being dropped temporarily, for rework/resubmission at a later time:
https://lkml.org/lkml/2014/8/13/617
But thanks for the patch. I'll take it into account in the future. A few comments below.
> 1 file changed, 6 insertions(+), 8 deletions(-) > > diff --git a/arch/arm/mach-bcm/platsmp-brcmstb.c b/arch/arm/mach-bcm/platsmp-brcmstb.c > index af780e9..c515ea1 100644 > --- a/arch/arm/mach-bcm/platsmp-brcmstb.c > +++ b/arch/arm/mach-bcm/platsmp-brcmstb.c > @@ -227,7 +227,7 @@ static int __init setup_hifcpubiuctrl_regs(struct device_node *np) > if (!syscon_np) { > pr_err("can't find phandle %s\n", name); > rc = -EINVAL; > - goto cleanup; > + goto out; > } > > cpubiuctrl_block = of_iomap(syscon_np, 0); > @@ -256,9 +256,8 @@ static int __init setup_hifcpubiuctrl_regs(struct device_node *np) > } > > cleanup: > - if (syscon_np) > - of_node_put(syscon_np); > - > + of_node_put(syscon_np); > +out:
Is there a good reason for this new label? I thought part of the point of this semantic patch is that the previous line (of_node_put()) is a no-op for NULL arguments.
> return rc; > } > > @@ -274,7 +273,7 @@ static int __init setup_hifcont_regs(struct device_node *np) > if (!syscon_np) { > pr_err("can't find phandle %s\n", name); > rc = -EINVAL; > - goto cleanup; > + goto out; > } > > hif_cont_block = of_iomap(syscon_np, 0); > @@ -288,9 +287,8 @@ static int __init setup_hifcont_regs(struct device_node *np) > hif_cont_reg = 0; > > cleanup: > - if (syscon_np) > - of_node_put(syscon_np); > - > + of_node_put(syscon_np); > +out:
Ditto.
> return rc; > } > >
Brian
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