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From: Biju Das <biju.das.jz@bp.renesas.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
	linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Chris Paterson <Chris.Paterson2@renesas.com>,
	Biju Das <biju.das@bp.renesas.com>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH 2/2] media: v4l: vsp1: Fix uif null pointer access
Date: Mon,  1 Mar 2021 12:08:28 +0000	[thread overview]
Message-ID: <20210301120828.6945-3-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20210301120828.6945-1-biju.das.jz@bp.renesas.com>

RZ/G2L SoC has no UIF. This patch fixes null pointer access, when UIF
module is not used.

Fixes: 5e824f989e6e8("media: v4l: vsp1: Integrate DISCOM in display pipeline")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/media/platform/vsp1/vsp1_drm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c
index f6d2f47a4058..06f74d410973 100644
--- a/drivers/media/platform/vsp1/vsp1_drm.c
+++ b/drivers/media/platform/vsp1/vsp1_drm.c
@@ -462,9 +462,9 @@ static int vsp1_du_pipeline_setup_inputs(struct vsp1_device *vsp1,
 	 * make sure it is present in the pipeline's list of entities if it
 	 * wasn't already.
 	 */
-	if (!use_uif) {
+	if (drm_pipe->uif && !use_uif) {
 		drm_pipe->uif->pipe = NULL;
-	} else if (!drm_pipe->uif->pipe) {
+	} else if (drm_pipe->uif && !drm_pipe->uif->pipe) {
 		drm_pipe->uif->pipe = pipe;
 		list_add_tail(&drm_pipe->uif->list_pipe, &pipe->entities);
 	}
-- 
2.17.1


  parent reply	other threads:[~2021-03-01 12:10 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-01 12:08 [PATCH 0/2] VSP trivial enhancements Biju Das
2021-03-01 12:08 ` [PATCH 1/2] media: v4l: vsp1: Fix bru null pointer access Biju Das
2021-03-08 23:06   ` Kieran Bingham
2021-03-11  7:15     ` Biju Das
2021-03-15  3:36       ` Laurent Pinchart
2021-03-15  9:15         ` Biju Das
2021-03-15  9:27           ` Laurent Pinchart
2021-03-01 12:08 ` Biju Das [this message]
2021-03-08 23:00   ` [PATCH 2/2] media: v4l: vsp1: Fix uif " Kieran Bingham
2021-03-10 13:56     ` Biju Das
2021-03-10 14:39       ` Kieran Bingham
2021-03-10 14:50         ` Biju Das
2021-03-15  3:42           ` Laurent Pinchart
2021-03-15  8:21             ` Biju Das
2021-03-16  1:01               ` Laurent Pinchart
2021-03-16  8:21             ` Hans Verkuil
2021-03-16 21:37               ` Laurent Pinchart
  -- strict thread matches above, loose matches on Subject: below --
2021-03-01 12:02 [PATCH 0/2] VSP trivial enhancements Biju Das
2021-03-01 12:02 ` [PATCH 2/2] media: v4l: vsp1: Fix uif null pointer access Biju Das

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