> -----Original Message----- > From: linux-media-ow...@vger.kernel.org [mailto:linux-media- > ow...@vger.kernel.org] On Behalf Of Y, Kishore > Sent: Wednesday, November 18, 2009 7:20 PM > To: linux-media@vger.kernel.org > Cc: linux-o...@vger.kernel.org > Subject: [PATCH] V4L2: clear buf when vrfb buf not allocated > > From 15246e4dfa6853d9aef48a4b8633f93efe40ed81 Mon Sep 17 00:00:00 > 2001 > From: Kishore Y <kishor...@ti.com> > Date: Thu, 12 Nov 2009 20:47:58 +0530 > Subject: [PATCH] V4L2: clear buf when vrfb buf not allocated > > buffer memory is set to 0 only for the first time > before the vrfb buffer is allocated > > Signed-off-by: Kishore Y <kishor...@ti.com> > --- > This patch is dependent on the patch > [PATCH 4/4] OMAP2/3 V4L2: Add support for OMAP2/3 V4L2 driver on top > of DSS2 > > drivers/media/video/omap/omap_vout.c | 10 +++++++--- > 1 files changed, 7 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/video/omap/omap_vout.c > b/drivers/media/video/omap/omap_vout.c > index 7092ef2..0a9fdd7 100644 > --- a/drivers/media/video/omap/omap_vout.c > +++ b/drivers/media/video/omap/omap_vout.c > @@ -223,9 +223,11 @@ static int > omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout, > unsigned int *count, int startindex) > { > int i, j; > + int buffer_set; > > for (i = 0; i < *count; i++) { > - if (!vout->smsshado_virt_addr[i]) { > + buffer_set = vout->smsshado_virt_addr[i]; > + if (!buffer_set) { > vout->smsshado_virt_addr[i] = > omap_vout_alloc_buffer(vout->smsshado_size, > &vout->smsshado_phy_addr[i]); > @@ -247,8 +249,10 @@ static int > omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout, > *count = 0; > return -ENOMEM; > } > - memset((void *) vout->smsshado_virt_addr[i], 0, > - vout->smsshado_size); > + if (!buffer_set) { > + memset((void *) vout->smsshado_virt_addr[i], 0, > + vout->smsshado_size); > + } > } [Hiremath, Vaibhav] Why do we need this? Anyway if I understand correctly this function is getting called only once during REQBUF or probe, right?
If you are selecting static_vrfb_allocation through module_params, then anyway REQBUF won't call this function again, since the buffers are already allocated. Thanks, Vaibhav > return 0; > } > -- > 1.5.4.3 > > > Regards, > Kishore Y > Ph:- +918039813085 > > -- > To unsubscribe from this list: send the line "unsubscribe linux- > media" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
