This is a note to let you know that I've just added the patch titled
drm/panel: novatek-nt35950: fix return value check in nt35950_probe()
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-panel-novatek-nt35950-fix-return-value-check-in-.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7bac252a732a582511222bdbc07425fa4da44b3f
Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date: Tue Oct 29 20:39:57 2024 +0800
drm/panel: novatek-nt35950: fix return value check in nt35950_probe()
[ Upstream commit f8fd0968eff52cf092c0d517d17507ea2f6e5ea5 ]
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@xxxxxxxxxx>
Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241029123957.1588-1-yangyingliang@xxxxxxxxxxxxxxx
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20241029123957.1588-1-yangyingliang@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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++;
}
