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Date: Fri, 17 Jun 2016 08:45:17 +0200 From: Jacek Anaszewski <j.anaszewski@...sung.com> To: Javier Martinez Canillas <javier@....samsung.com> Cc: linux-kernel@...r.kernel.org, Mauro Carvalho Chehab <mchehab@....samsung.com>, Andrzej Pietrasiewicz <andrzej.p@...sung.com>, linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org Subject: Re: [PATCH 4/6] [media] s5p-jpeg: only fill driver's name in capabilities driver field Hi Javier, On 06/16/2016 11:40 PM, Javier Martinez Canillas wrote: > The driver fills in both the struct v4l2_capability driver and card fields > the same values, that is the driver's name plus the information if the dev > is a decoder or an encoder. > > But the driver field has a fixed length of 16 bytes so the filled data is > truncated: > > Driver Info (not using libv4l2): > Driver name : s5p-jpeg decode > Card type : s5p-jpeg decoder > Bus info : platform:11f50000.jpeg > Driver version: 4.7.0 > > Also, this field should only contain the driver's name so use just that. > The information if the device is a decoder or an encoder is in the card > type field anyways. > > Signed-off-by: Javier Martinez Canillas <javier@....samsung.com> > --- > > drivers/media/platform/s5p-jpeg/jpeg-core.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c > index e3ff3d4bd72e..f9fb52a53e79 100644 > --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c > +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c > @@ -1246,12 +1246,12 @@ static int s5p_jpeg_querycap(struct file *file, void *priv, > struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); > > if (ctx->mode == S5P_JPEG_ENCODE) { > - strlcpy(cap->driver, S5P_JPEG_M2M_NAME " encoder", > + strlcpy(cap->driver, S5P_JPEG_M2M_NAME, > sizeof(cap->driver)); > strlcpy(cap->card, S5P_JPEG_M2M_NAME " encoder", > sizeof(cap->card)); > } else { > - strlcpy(cap->driver, S5P_JPEG_M2M_NAME " decoder", > + strlcpy(cap->driver, S5P_JPEG_M2M_NAME, > sizeof(cap->driver)); > strlcpy(cap->card, S5P_JPEG_M2M_NAME " decoder", > sizeof(cap->card)); > Acked-by: Jacek Anaszewski <j.anaszewski@...sung.com> -- Best regards, Jacek Anaszewski
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