* drivers/iio/trigger/iio-trig-hrtimer.c:41:8-16: WARNING: use scnprintf or sprintf
@ 2020-12-02 13:02 kernel test robot
2020-12-02 13:02 ` [PATCH] coccinelle: api: fix device_attr_show.cocci warnings kernel test robot
0 siblings, 1 reply; 2+ messages in thread
From: kernel test robot @ 2020-12-02 13:02 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 1049 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Denis Efremov <efremov@linux.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 509a15421674b9e1a3e1916939d0d0efd3e578da
commit: abfc19ff202d287742483e15fd478ddd6ada2187 coccinelle: api: add device_attr_show script
date: 4 months ago
:::::: branch date: 13 hours ago
:::::: commit date: 4 months ago
config: x86_64-randconfig-c002-20201201 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
"coccinelle warnings: (new ones prefixed by >>)"
>> drivers/iio/trigger/iio-trig-hrtimer.c:41:8-16: WARNING: use scnprintf or sprintf
Please review and possibly fold the followup patch.
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH] coccinelle: api: fix device_attr_show.cocci warnings
2020-12-02 13:02 drivers/iio/trigger/iio-trig-hrtimer.c:41:8-16: WARNING: use scnprintf or sprintf kernel test robot
@ 2020-12-02 13:02 ` kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2020-12-02 13:02 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 2037 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Denis Efremov <efremov@linux.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>
CC: Jonathan Cameron <jic23@kernel.org>
CC: Hartmut Knaack <knaack.h@gmx.de>
CC: "Lars-Peter Clausen" <lars@metafoo.de>
CC: "Peter Meerwald-Stadler" <pmeerw@pmeerw.net>
CC: Alexandru Ardelean <alexandru.ardelean@analog.com>
CC: Geert Uytterhoeven <geert+renesas@glider.be>
CC: linux-iio(a)vger.kernel.org
CC: linux-kernel(a)vger.kernel.org
From: kernel test robot <lkp@intel.com>
drivers/iio/trigger/iio-trig-hrtimer.c:41:8-16: WARNING: use scnprintf or sprintf
From Documentation/filesystems/sysfs.txt:
show() must not use snprintf() when formatting the value to be
returned to user space. If you can guarantee that an overflow
will never happen you can use sprintf() otherwise you must use
scnprintf().
Generated by: scripts/coccinelle/api/device_attr_show.cocci
Fixes: abfc19ff202d ("coccinelle: api: add device_attr_show script")
CC: Denis Efremov <efremov@linux.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 509a15421674b9e1a3e1916939d0d0efd3e578da
commit: abfc19ff202d287742483e15fd478ddd6ada2187 coccinelle: api: add device_attr_show script
:::::: branch date: 13 hours ago
:::::: commit date: 4 months ago
Please take the patch only if it's a positive warning. Thanks!
iio-trig-hrtimer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/trigger/iio-trig-hrtimer.c
+++ b/drivers/iio/trigger/iio-trig-hrtimer.c
@@ -38,7 +38,7 @@ ssize_t iio_hrtimer_show_sampling_freque
struct iio_trigger *trig = to_iio_trigger(dev);
struct iio_hrtimer_info *info = iio_trigger_get_drvdata(trig);
- return snprintf(buf, PAGE_SIZE, "%lu\n", info->sampling_frequency);
+ return scnprintf(buf, PAGE_SIZE, "%lu\n", info->sampling_frequency);
}
static
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2020-12-02 13:02 drivers/iio/trigger/iio-trig-hrtimer.c:41:8-16: WARNING: use scnprintf or sprintf kernel test robot
2020-12-02 13:02 ` [PATCH] coccinelle: api: fix device_attr_show.cocci warnings kernel test robot
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