diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2024-10-29 20:39:57 +0800 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2024-12-13 10:51:39 +0100 |
| commit | f8fd0968eff52cf092c0d517d17507ea2f6e5ea5 (patch) | |
| tree | 36a8d45f4424ad6822af9649bb0ee0615375f159 /drivers/gpu | |
| parent | e1e1af9148dc4c866eda3fb59cd6ec3c7ea34b1d (diff) | |
| download | lwn-f8fd0968eff52cf092c0d517d17507ea2f6e5ea5.tar.gz lwn-f8fd0968eff52cf092c0d517d17507ea2f6e5ea5.zip | |
drm/panel: novatek-nt35950: fix return value check in nt35950_probe()
mipi_dsi_device_register_full() never returns NULL pointer, it
will return ERR_PTR() when it fails, so replace the check with
IS_ERR().
Fixes: 623a3531e9cf ("drm/panel: Add driver for Novatek NT35950 DSI DriverIC panels")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20241029123957.1588-1-yangyingliang@huaweicloud.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241029123957.1588-1-yangyingliang@huaweicloud.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-novatek-nt35950.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panel/panel-novatek-nt35950.c b/drivers/gpu/drm/panel/panel-novatek-nt35950.c index b036208f9356..08b22b592ab0 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt35950.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt35950.c @@ -481,9 +481,9 @@ static int nt35950_probe(struct mipi_dsi_device *dsi) return dev_err_probe(dev, -EPROBE_DEFER, "Cannot get secondary DSI host\n"); nt->dsi[1] = mipi_dsi_device_register_full(dsi_r_host, info); - if (!nt->dsi[1]) { + if (IS_ERR(nt->dsi[1])) { dev_err(dev, "Cannot get secondary DSI node\n"); - return -ENODEV; + return PTR_ERR(nt->dsi[1]); } num_dsis++; } |