Messages in this thread | | | Date | Mon, 18 Dec 2017 11:20:38 -0800 | From | Stephen Hemminger <> | Subject | Re: [PATCH] Staging: irda: Do not check for NOT NULL before kfree() |
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On Tue, 19 Dec 2017 00:41:30 +0530 Shreeya Patel <shreeya.patel23498@gmail.com> wrote:
> Do not check for NOT NULL before calling kfree because if the > pointer is NULL, no action occurs. > Done using the following semantic patch by coccinelle. > > @@ > expression ptr; > @@ > > - if (ptr != NULL) { > kfree(ptr); > ptr = NULL; > - } > > The semantic patch has the effect of adding an assignment > of ptr to NULL in the case where ptr is NULL already. > > Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
Please read drivers/staging/irda/TODO
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