lkml.org 
[lkml]   [2019]   [Sep]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2] clk/ti/adpll: allocate room for terminating null
Date
The buffer allocated in ti_adpll_clk_get_name doesn't account for the
terminating null. This patch switches to ka_sprintf to avoid
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;
--
2.20.1
\
 
 \ /
  Last update: 2019-09-27 20:07    [W:0.067 / U:12.508 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site