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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-media@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 30/92] media: coda: clear error return value before picture run
Date: Wed, 22 May 2019 15:30:25 -0400	[thread overview]
Message-ID: <20190522193127.27079-30-sashal@kernel.org> (raw)
In-Reply-To: <20190522193127.27079-1-sashal@kernel.org>

From: Philipp Zabel <p.zabel@pengutronix.de>

[ Upstream commit bbeefa7357a648afe70e7183914c87c3878d528d ]

The error return value is not written by some firmware codecs, such as
MPEG-2 decode on CodaHx4. Clear the error return value before starting
the picture run to avoid misinterpreting unrelated values returned by
sequence initialization as error return value.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/coda/coda-bit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index d76511c1c1e3f..a4639813cf35d 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1829,6 +1829,9 @@ static int coda_prepare_decode(struct coda_ctx *ctx)
 	/* Clear decode success flag */
 	coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
 
+	/* Clear error return value */
+	coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB);
+
 	trace_coda_dec_pic_run(ctx, meta);
 
 	coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
-- 
2.20.1


  parent reply	other threads:[~2019-05-22 19:32 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-22 19:29 [PATCH AUTOSEL 4.4 01/92] gfs2: Fix lru_count going negative Sasha Levin
2019-05-22 19:29 ` [PATCH AUTOSEL 4.4 02/92] cxgb4: Fix error path in cxgb4_init_module Sasha Levin
2019-05-22 19:29 ` [PATCH AUTOSEL 4.4 03/92] mmc: core: Verify SD bus width Sasha Levin
2019-05-22 19:29 ` [PATCH AUTOSEL 4.4 04/92] powerpc/boot: Fix missing check of lseek() return value Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 05/92] ASoC: imx: fix fiq dependencies Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 06/92] spi: pxa2xx: fix SCR (divisor) calculation Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 07/92] brcm80211: potential NULL dereference in brcmf_cfg80211_vndr_cmds_dcmd_handler() Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 08/92] rtc: 88pm860x: prevent use-after-free on device remove Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 09/92] w1: fix the resume command API Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 10/92] dmaengine: pl330: _stop: clear interrupt status Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 11/92] mac80211/cfg80211: update bss channel on channel switch Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 12/92] driver core: platform: Fix the usage of platform device name(pdev->name) Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 13/92] ASoC: fsl_sai: Update is_slave_mode with correct value Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 14/92] mwifiex: prevent an array overflow Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 15/92] net: cw1200: fix a NULL pointer dereference Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 16/92] at76c50x-usb: Don't register led_trigger if usb_register_driver failed Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 17/92] ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 18/92] bcache: return error immediately in bch_journal_replay() Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 19/92] bcache: fix failure in journal relplay Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 20/92] bcache: add failure check to run_cache_set() for journal replay Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 21/92] bcache: avoid clang -Wunintialized warning Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 22/92] RDMA/cma: Consider scope_id while binding to ipv6 ll address Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 23/92] x86/build: Move _etext to actual end of .text Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 24/92] smpboot: Place the __percpu annotation correctly Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 25/92] x86/mm: Remove in_nmi() warning from 64-bit implementation of vmalloc_fault() Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 26/92] mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 27/92] HID: logitech-hidpp: use RAP instead of FAP to get the protocol version Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 28/92] pinctrl: pistachio: fix leaked of_node references Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 29/92] dmaengine: at_xdmac: remove BUG_ON macro in tasklet Sasha Levin
2019-05-22 19:30 ` Sasha Levin [this message]
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 31/92] media: ov6650: Move v4l2_clk_get() to ov6650_video_probe() helper Sasha Levin
2019-05-22 19:30 ` [PATCH AUTOSEL 4.4 32/92] media: au0828: stop video streaming only when last user stops Sasha Levin

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