CC: kbuild-all(a)lists.01.org
TO: Denis Efremov <efremov@linux.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>
CC: Alex Deucher <alexander.deucher@amd.com>
CC: "Christian König" <christian.koenig@amd.com>
CC: David Airlie <airlied@linux.ie>
CC: Daniel Vetter <daniel@ffwll.ch>
CC: Hawking Zhang <Hawking.Zhang@amd.com>
CC: Tao Zhou <tao.zhou1@amd.com>
CC: Guchun Chen <guchun.chen@amd.com>
CC: Dennis Li <Dennis.Li@amd.com>

From: kernel test robot <lkp@intel.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:419:9-17: 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: 988676da8375 ("coccinelle: api: add device_attr_show script")
CC: Denis Efremov <efremov@linux.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux.git for-5.9
head:   5502a4eb3af819792a6c43b418c401f613a39d02
commit: 988676da837516bbfafda5478472fd4265f0de4e [1/3] coccinelle: api: add device_attr_show script
:::::: branch date: 8 days ago
:::::: commit date: 9 days ago

Please take the patch only if it's a positive warning. Thanks!

 amdgpu_ras.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -416,13 +416,13 @@ static ssize_t amdgpu_ras_sysfs_read(str
 	};
 
 	if (!amdgpu_ras_get_error_query_ready(obj->adev))
-		return snprintf(buf, PAGE_SIZE,
+		return scnprintf(buf, PAGE_SIZE,
 				"Query currently inaccessible\n");
 
 	if (amdgpu_ras_error_query(obj->adev, &info))
 		return -EINVAL;
 
-	return snprintf(buf, PAGE_SIZE, "%s: %lu\n%s: %lu\n",
+	return scnprintf(buf, PAGE_SIZE, "%s: %lu\n%s: %lu\n",
 			"ue", info.ue_count,
 			"ce", info.ce_count);
 }