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clk/ti/adpll: allocate room for terminating null

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[ Upstream commit 7f6ac72946b88b89ee44c1c527aa8591ac5ffcbe ]

The buffer allocated in ti_adpll_clk_get_name doesn't account for the
terminating null. This patch switches to devm_kasprintf to avoid
overflowing.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Link: https://lkml.kernel.org/r/20191019140634.15596-1-steve@sk2.org
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Stephen Kitt 2019-10-19 16:06:34 +02:00 • committed by Greg Kroah-Hartman
commit c5505813d0
1 changed files with 2 additions and 9 deletions
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11
drivers/clk/ti/adpll.c
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@ -194,15 +194,8 @@ static const char *ti_adpll_clk_get_name(struct ti_adpll_data *d,
if (err)
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.adpll.%s",
d->pa, postfix);
}
return name;