[bug report] drm/bridge: add a driver for T-Head TH1520 HDMI controller

From: Dan Carpenter <error27@gmail.com>
To: Icenowy Zheng <uwu@icenowy.me>
Cc: linux-riscv@lists.infradead.org, dri-devel@lists.freedesktop.org
Subject: [bug report] drm/bridge: add a driver for T-Head TH1520 HDMI controller
Date: Fri, 10 Apr 2026 13:11:59 +0300	[thread overview]
Message-ID: <adjM7-DcN_6KvbE7@stanley.mountain> (raw)

Hello Icenowy Zheng,

Commit 96f30ee0fb9d ("drm/bridge: add a driver for T-Head TH1520 HDMI
controller") from Jan 29, 2026 (linux-next), leads to the following
Smatch static checker warning:

	drivers/gpu/drm/bridge/th1520-dw-hdmi.c:139 th1520_dw_hdmi_probe()
	warn: 'hdmi' isn't an ERR_PTR

drivers/gpu/drm/bridge/th1520-dw-hdmi.c
    133         plat_data->output_port = 1;
    134         plat_data->mode_valid = th1520_hdmi_mode_valid;
    135         plat_data->configure_phy = th1520_hdmi_phy_configure;
    136         plat_data->priv_data = hdmi;
    137 
    138         hdmi->dw_hdmi = dw_hdmi_probe(pdev, plat_data);
--> 139         if (IS_ERR(hdmi))
    140                 return PTR_ERR(hdmi);

s/hdmi/hdmi->dw_hdmi/

    141 
    142         platform_set_drvdata(pdev, hdmi);
    143 
    144         return 0;
    145 }

This email is a free service from the Smatch-CI project [smatch.sf.net].

regards,
dan carpenter

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