Messages in this thread | | | Subject | Re: [PATCH 1/1] [media] v4l: rcar_fdp1: use %4.4s to format a 4-byte string | From | Kieran Bingham <> | Date | Wed, 28 Dec 2016 09:47:15 +0000 |
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Hi Nicolas,
Thankyou for the patch
This looks like a good catch,
On 26/12/16 13:31, Nicolas Iooss wrote: > Using %4s to format f->fmt.pix_mp.pixelformat in fdp1_try_fmt() and > fdp1_s_fmt() may lead to more characters being printed (when the byte > following field pixelformat is not zero). > > Add ".4" to the format specifier to limit the number of printed > characters to four. The resulting format specifier "%4.4s" is also used > by other media drivers to print pixelformat value. > > Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Reviewed-by: Kieran Bingham <kieran@bingham.xyz>
> --- > drivers/media/platform/rcar_fdp1.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/platform/rcar_fdp1.c b/drivers/media/platform/rcar_fdp1.c > index 674cc1309b43..42f25d241edd 100644 > --- a/drivers/media/platform/rcar_fdp1.c > +++ b/drivers/media/platform/rcar_fdp1.c > @@ -1596,7 +1596,7 @@ static int fdp1_try_fmt(struct file *file, void *priv, struct v4l2_format *f) > else > fdp1_try_fmt_capture(ctx, NULL, &f->fmt.pix_mp); > > - dprintk(ctx->fdp1, "Try %s format: %4s (0x%08x) %ux%u field %u\n", > + dprintk(ctx->fdp1, "Try %s format: %4.4s (0x%08x) %ux%u field %u\n", > V4L2_TYPE_IS_OUTPUT(f->type) ? "output" : "capture", > (char *)&f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.pixelformat, > f->fmt.pix_mp.width, f->fmt.pix_mp.height, f->fmt.pix_mp.field); > @@ -1671,7 +1671,7 @@ static int fdp1_s_fmt(struct file *file, void *priv, struct v4l2_format *f) > > fdp1_set_format(ctx, &f->fmt.pix_mp, f->type); > > - dprintk(ctx->fdp1, "Set %s format: %4s (0x%08x) %ux%u field %u\n", > + dprintk(ctx->fdp1, "Set %s format: %4.4s (0x%08x) %ux%u field %u\n", > V4L2_TYPE_IS_OUTPUT(f->type) ? "output" : "capture", > (char *)&f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.pixelformat, > f->fmt.pix_mp.width, f->fmt.pix_mp.height, f->fmt.pix_mp.field); >
-- Regards
Kieran Bingham
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