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Subject: media: verisilicon: replace snprintf with strscpy+strlcat
Author: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Date: Sat Sep 23 17:21:06 2023 +0200
Fixes this warning:
drivers/media/platform/verisilicon/hantro_drv.c: In function 'hantro_add_func':
drivers/media/platform/verisilicon/hantro_drv.c:902:49: warning: '%s' directive
output may be truncated writing up to 127 bytes into a region of size 64
[-Wformat-truncation=]
902 | snprintf(vfd->name, sizeof(vfd->name), "%s-%s",
match->compatible,
| ^~
drivers/media/platform/verisilicon/hantro_drv.c:902:9: note: 'snprintf' output
between 5 and 132 bytes into a destination of size 64
902 | snprintf(vfd->name, sizeof(vfd->name), "%s-%s",
match->compatible,
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
903 | funcid == MEDIA_ENT_F_PROC_VIDEO_ENCODER ? "enc" :
"dec");
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/media/platform/verisilicon/hantro_drv.c:902:49: warning: '%s' directive
output may be truncated writing up to 127 bytes into a region of size 64
[-Wformat-truncation=]
902 | snprintf(vfd->name, sizeof(vfd->name), "%s-%s",
match->compatible,
| ^~
drivers/media/platform/verisilicon/hantro_drv.c:902:9: note: 'snprintf' output
between 5 and 132 bytes into a destination of size 64
902 | snprintf(vfd->name, sizeof(vfd->name), "%s-%s",
match->compatible,
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
903 | funcid == MEDIA_ENT_F_PROC_VIDEO_ENCODER ? "enc" :
"dec");
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/platform/verisilicon/hantro_drv.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c
b/drivers/media/platform/verisilicon/hantro_drv.c
index 50ec24c753e9..a9fa05ac56a9 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -899,8 +899,9 @@ static int hantro_add_func(struct hantro_dev *vpu, unsigned
int funcid)
vfd->vfl_dir = VFL_DIR_M2M;
vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE;
vfd->ioctl_ops = &hantro_ioctl_ops;
- snprintf(vfd->name, sizeof(vfd->name), "%s-%s", match->compatible,
- funcid == MEDIA_ENT_F_PROC_VIDEO_ENCODER ? "enc" : "dec");
+ strscpy(vfd->name, match->compatible, sizeof(vfd->name));
+ strlcat(vfd->name, funcid == MEDIA_ENT_F_PROC_VIDEO_ENCODER ?
+ "-enc" : "-dec", sizeof(vfd->name));
if (funcid == MEDIA_ENT_F_PROC_VIDEO_ENCODER) {
vpu->encoder = func;
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