From: Robert Foss <robert.foss@linaro.org>
To: a.hajda@samsung.com, narmstrong@baylibre.com,
robert.foss@linaro.org, Laurent.pinchart@ideasonboard.com,
jonas@kwiboo.se, jernej.skrabec@gmail.com, airlied@linux.ie,
daniel@ffwll.ch, xji@analogixsemi.com, pihsun@chromium.org,
tzungbi@google.com, sam@ravnborg.org, hsinyi@chromium.org,
drinkcat@chromium.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/2] drm/bridge: anx7625: Propagate errors from sp_tx_edid_read()
Date: Wed, 18 Aug 2021 19:13:18 +0200 [thread overview]
Message-ID: <20210818171318.1848272-2-robert.foss@linaro.org> (raw)
In-Reply-To: <20210818171318.1848272-1-robert.foss@linaro.org>
During the sp_tx_edid_read() call the return value of sp_tx_edid_read()
is ignored, which could cause potential errors to go unhandled.
All errors which are returned by sp_tx_edid_read() are handled in
anx7625_get_edid().
Signed-off-by: Robert Foss <robert.foss@linaro.org>
---
drivers/gpu/drm/bridge/analogix/anx7625.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index ea414cd349b5c..abc8db77bfd36 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -845,8 +845,11 @@ static int sp_tx_edid_read(struct anx7625_data *ctx,
if (g_edid_break == 1)
break;
- segments_edid_read(ctx, count / 2,
- pblock_buf, offset);
+ ret = segments_edid_read(ctx, count / 2,
+ pblock_buf, offset);
+ if (ret < 0)
+ return ret;
+
memcpy(&pedid_blocks_buf[edid_pos],
pblock_buf,
MAX_DPCD_BUFFER_SIZE);
@@ -863,8 +866,11 @@ static int sp_tx_edid_read(struct anx7625_data *ctx,
if (g_edid_break == 1)
break;
- segments_edid_read(ctx, count / 2,
- pblock_buf, offset);
+ ret = segments_edid_read(ctx, count / 2,
+ pblock_buf, offset);
+ if (ret < 0)
+ return ret;
+
memcpy(&pedid_blocks_buf[edid_pos],
pblock_buf,
MAX_DPCD_BUFFER_SIZE);
--
2.30.2
next prev parent reply other threads:[~2021-08-18 17:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-18 17:13 [PATCH v2 1/2] drm/bridge: anx7625: Propagate errors from sp_tx_rst_aux() Robert Foss
2021-08-18 17:13 ` Robert Foss [this message]
[not found] ` <YR1F+I4/JbBAgpwZ@ravnborg.org>
2021-08-18 19:02 ` [PATCH v2 2/2] drm/bridge: anx7625: Propagate errors from sp_tx_edid_read() Robert Foss
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