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SubjectRe: [PATCH v2] clk/ti/adpll: allocate room for terminating null
Le 27/09/2019 20:05, Stephen Kitt a écrit :
> The buffer allocated in ti_adpll_clk_get_name doesn't account for the
> terminating null. This patch switches to ka_sprintf to avoid

Aargh, devm_kasprintf of course...

> overflowing.
>
> Signed-off-by: Stephen Kitt <steve@sk2.org>
> ---
> drivers/clk/ti/adpll.c | 10 ++--------
> 1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/clk/ti/adpll.c b/drivers/clk/ti/adpll.c
> index fdfb90058504..021cf9e2b4db 100644
> --- a/drivers/clk/ti/adpll.c
> +++ b/drivers/clk/ti/adpll.c
> @@ -195,14 +195,8 @@ static const char *ti_adpll_clk_get_name(struct
> ti_adpll_data *d,
> return NULL;
> } else {
> const char *base_name = "adpll";
> - char *buf;
> -
> - buf = devm_kzalloc(d->dev, 8 + 1 + strlen(base_name) + 1 +
> - strlen(postfix), GFP_KERNEL);
> - if (!buf)
> - return NULL;
> - sprintf(buf, "%08lx.%s.%s", d->pa, base_name, postfix);
> - name = buf;
> + name = devm_kasprintf(d->dev, GFP_KERNEL, "%08lx.%s.%s",
> + d->pa, base_name, postfix);
> }
>
> return name;

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