From c726fc01cf669e3e2979da8665ef660e7d3ba464 Mon Sep 17 00:00:00 2001 From: Michal Suchanek Date: Wed, 12 Oct 2022 21:57:59 +0200 Subject: dm: treewide: Use uclass_first_device_err when accessing one device There is a number of users that use uclass_first_device to access the first and (assumed) only device in uclass. Some check the return value of uclass_first_device and also that a device was returned which is exactly what uclass_first_device_err does. Some are not checking that a device was returned and can potentially crash if no device exists in the uclass. Finally there is one that returns NULL on error either way. Convert all of these to use uclass_first_device_err instead, the return value will be removed from uclass_first_device in a later patch. Signed-off-by: Michal Suchanek Reviewed-by: Simon Glass --- drivers/video/stm32/stm32_dsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/video/stm32/stm32_dsi.c') diff --git a/drivers/video/stm32/stm32_dsi.c b/drivers/video/stm32/stm32_dsi.c index 5871ac7c4ff..e6347bb8da6 100644 --- a/drivers/video/stm32/stm32_dsi.c +++ b/drivers/video/stm32/stm32_dsi.c @@ -346,7 +346,7 @@ static int stm32_dsi_attach(struct udevice *dev) struct display_timing timings; int ret; - ret = uclass_first_device(UCLASS_PANEL, &priv->panel); + ret = uclass_first_device_err(UCLASS_PANEL, &priv->panel); if (ret) { dev_err(dev, "panel device error %d\n", ret); return ret; -- cgit v1.2.3