From 24c06295f28335ced3aad53dd4b0a0bae7b9b100 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 24 Aug 2023 03:38:58 +0200 Subject: [PATCH] media: hantro: Check whether reset op is defined before use [ Upstream commit 88d4b23a629ebd34f682f770cb6c2116c851f7b8 ] The i.MX8MM/N/P does not define the .reset op since reset of the VPU is done by genpd. Check whether the .reset op is defined before calling it to avoid NULL pointer dereference. Note that the Fixes tag is set to the commit which removed the reset op from i.MX8M Hantro G2 implementation, this is because before this commit all the implementations did define the .reset op. Fixes: 6971efb70ac3 ("media: hantro: Allow i.MX8MQ G1 and G2 to run independently") Signed-off-by: Marek Vasut Reviewed-by: Chen-Yu Tsai Tested-by: Chen-Yu Tsai Reviewed-by: Adam Ford Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/platform/verisilicon/hantro_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c index 423fc85..50ec24c 100644 --- a/drivers/media/platform/verisilicon/hantro_drv.c +++ b/drivers/media/platform/verisilicon/hantro_drv.c @@ -125,7 +125,8 @@ void hantro_watchdog(struct work_struct *work) ctx = v4l2_m2m_get_curr_priv(vpu->m2m_dev); if (ctx) { vpu_err("frame processing timed out!\n"); - ctx->codec_ops->reset(ctx); + if (ctx->codec_ops->reset) + ctx->codec_ops->reset(ctx); hantro_job_finish(vpu, ctx, VB2_BUF_STATE_ERROR); } } -- 2.7.4