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(unknown [61.154.14.86]) by smtp.qiye.163.com (Hmail) with ESMTP id 528777a2a; Tue, 27 Oct 2026 21:28:20 +0800 (GMT+08:00) From: Damon Ding To: Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jingoo Han , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Peter Griffin , Alim Akhtar , Heiko Stuebner , Sandy Huang Cc: Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Dmitry Baryshkov , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Damon Ding , Sashiko Subject: [PATCH v5 05/18] drm/bridge: analogix_dp: Check all negative return values for &analogix_dp_device.irq Date: Tue, 27 Oct 2026 21:27:57 +0800 Message-Id: <20261027132810.1746118-6-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261027132810.1746118-1-damon.ding@rock-chips.com> References: <20261027132810.1746118-1-damon.ding@rock-chips.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0aa17d8c2afd03a8kunm87c266213d56ef X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVlCQx5PVhgdSEwaQ0tKSh8ZGlYVFA kWGhdVEwETFhoSFyQUDg9ZV1kYEgtZQVlNSlVKTk9VSk9VQ01ZV1kWGg8SFR0UWUFZT0tIVUpLSE pKQk1VSktLVUpCWQY+ DKIM-Signature: a=rsa-sha256; b=F3FFK/8e3HcpyES/ytYE8Sx+ej1iUy345GVGh2ahq2T2q+vThfjpULlUzfRYZkvRJZ0mF37Ajr11Jmqnxbx8zzd4hs5yb+iglWjGA69j39zQnMXFlOL53RleBRmu7ZC2WvRnfL5YUEB4zSSPDAIqpABMjqZ9jPbcSYAIqMVP4F4=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=Atr7jCw5foNaUR+UTxGp65IaTqEq2+vCnCpbrDPXzlA=; h=date:mime-version:subject:message-id:from; Currently only -ENXIO is checked for dp->irq from gpiod_to_irq(), which ignores other possible error codes like -EPROBE_DEFER, -ENOENT. Check for any negative value instead, and propagate the actual error code rather than hardcoding -ENODEV. Reported-by: Sashiko Link: https://lore.kernel.org/all/20260804083307.84ECA1F000E9@smtp.kernel.org/ Tested-by: Heiko Stuebner Signed-off-by: Damon Ding --- Changes in v4: - Add Tested-by tag. Changes in v5: - Change the type of &analogix_dp_device.irq from unsigned int to int to fix the dead dp->irq < 0 check, which broke the probe deferral for the HPD GPIO. (Sashiko) --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 4 ++-- drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index a3871f28b835..c40ab7419f08 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1519,9 +1519,9 @@ analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data) irq_flags = IRQF_NO_AUTOEN; } - if (dp->irq == -ENXIO) { + if (dp->irq < 0) { dev_err(&pdev->dev, "failed to get irq\n"); - return ERR_PTR(-ENODEV); + return ERR_PTR(dp->irq); } ret = devm_request_threaded_irq(&pdev->dev, dp->irq, diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h index dc189f0b7a19..cc3466304531 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h @@ -159,7 +159,7 @@ struct analogix_dp_device { struct drm_bridge bridge; struct drm_dp_aux aux; struct clk *clock; - unsigned int irq; + int irq; void __iomem *reg_base; struct video_info video_info; -- 2.34.1