Hi Hans,
Thanks for the reply.
On Wed, May 26, 2021 at 9:41 PM Hans Verkuil <hverkuil-cisco@xxxxxxxxx> wrote:
>
> On 11/05/2021 06:09, dillon.minfei@xxxxxxxxx wrote:
> > From: Dillon Min <dillon.minfei@xxxxxxxxx>
> >
> > The m2m_ctx resources was allocated by v4l2_m2m_ctx_init() in g2d_open()
> > should be freed from g2d_release() when it's not used.
> >
> > Fix it
> >
> > Fixes: 918847341af0 ("[media] v4l: add G2D driver for s5p device family")
> > Signed-off-by: Dillon Min <dillon.minfei@xxxxxxxxx>
> > ---
> > drivers/media/platform/s5p-g2d/g2d.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
> > index 15bcb7f6e113..0818fdd3e984 100644
> > --- a/drivers/media/platform/s5p-g2d/g2d.c
> > +++ b/drivers/media/platform/s5p-g2d/g2d.c
> > @@ -279,6 +279,9 @@ static int g2d_release(struct file *file)
> > v4l2_ctrl_handler_free(&ctx->ctrl_handler);
> > v4l2_fh_del(&ctx->fh);
> > v4l2_fh_exit(&ctx->fh);
> > + mutex_lock(&dev->mutex);
> > + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
> > + mutex_unlock(&dev->mutex);
>
> This should be moved up to just before the v4l2_ctrl_handler_free() call.
On my mistake, thanks for pointing it out. will be moved up to
v4l2_ctrl_handler_free() in v2.
Best regards.
Dillon
>
> Regards,
>
> Hans
>
> > kfree(ctx);
> > v4l2_info(&dev->v4l2_dev, "instance closed\n");
> > return 0;
> >
>
