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Groups > linux.kernel > #1735723
| From | Joe Perches <joe@perches.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] PM / OPP: Handle return value of kasprintf |
| Date | 2017-09-20 13:20 +0200 |
| Message-ID | <urLcR-2iJ-13@gated-at.bofh.it> (permalink) |
| References | <urHiX-8bg-49@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, 2017-09-20 at 12:29 +0530, Arvind Yadav wrote:
> kasprintf() can fail here and we must check its return value.
[]
> diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c
[]
> @@ -45,7 +45,8 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
>
> for (i = 0; i < opp_table->regulator_count; i++) {
> name = kasprintf(GFP_KERNEL, "supply-%d", i);
> -
> + if (!name)
> + return false;
> /* Create per-opp directory */
> d = debugfs_create_dir(name, pdentry);
Probably more sensible to avoid the kasprintf/kfree
and just have
char name[20];
on the stack
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[PATCH] PM / OPP: Handle return value of kasprintf Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-09-20 09:10 +0200
Re: [PATCH] PM / OPP: Handle return value of kasprintf Joe Perches <joe@perches.com> - 2017-09-20 13:20 +0200
Re: [PATCH] PM / OPP: Handle return value of kasprintf Viresh Kumar <viresh.kumar@linaro.org> - 2017-09-20 16:50 +0200
Re: [PATCH] PM / OPP: Handle return value of kasprintf arvind <arvind.yadav.cs@gmail.com> - 2017-09-20 19:00 +0200
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