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authorStephen Kitt <steve@sk2.org>2019-10-19 17:06:34 +0300
committerStephen Boyd <sboyd@kernel.org>2019-11-08 20:00:37 +0300
commit7f6ac72946b88b89ee44c1c527aa8591ac5ffcbe (patch)
tree2e925a8f238ba1aa2b7d4b9e197011430389f98b /drivers/clk
parent049325870aa86a6c6b17ce3db667a6adbb6e6a76 (diff)
downloadlinux-7f6ac72946b88b89ee44c1c527aa8591ac5ffcbe.tar.xz
clk/ti/adpll: allocate room for terminating null
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>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/ti/adpll.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/clk/ti/adpll.c b/drivers/clk/ti/adpll.c
index fdfb90058504..bb2f2836dab2 100644
--- a/drivers/clk/ti/adpll.c
+++ b/drivers/clk/ti/adpll.c
@@ -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;