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media: use strscpy() instead of strlcpy()

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The implementation of strscpy() is more robust and safer.

That's now the recommended way to copy NUL terminated strings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab
2018-09-10 08:19:14 -04:00
rodzic b730c40813
commit c0decac19d
260 zmienionych plików z 676 dodań i 665 usunięć
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8
drivers/media/platform/m2m-deinterlace.c
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@@ -438,9 +438,9 @@ static void deinterlace_device_run(void *priv)
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
strlcpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver));
strlcpy(cap->card, MEM2MEM_NAME, sizeof(cap->card));
strlcpy(cap->bus_info, MEM2MEM_NAME, sizeof(cap->card));
strscpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver));
strscpy(cap->card, MEM2MEM_NAME, sizeof(cap->card));
strscpy(cap->bus_info, MEM2MEM_NAME, sizeof(cap->card));
/*
* This is only a mem-to-mem video device. The capture and output
* device capability flags are left only for backward compatibility
@@ -474,7 +474,7 @@ static int enum_fmt(struct v4l2_fmtdesc *f, u32 type)
if (i < NUM_FORMATS) {
/* Format found */
fmt = &formats[i];
strlcpy(f->description, fmt->name, sizeof(f->description));
strscpy(f->description, fmt->name, sizeof(f->description));
f->pixelformat = fmt->fourcc;
return 0;
}