From: Fabien Dessenne <fabien.dessenne@st.com>
Date: Wed, 24 Apr 2019 14:03:21 +0000 (+0200)
Subject: drm/stm: ltdc: return appropriate error code during probe
X-Git-Tag: v5.3-rc1~81^2~27^2~93
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=1f358bc6f272b9846dda4c1a9ab05aa1afa06954;p=linux.git

drm/stm: ltdc: return appropriate error code during probe

During probe, return the "clk_get" error value instead of -ENODEV.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1556114601-30936-3-git-send-email-fabien.dessenne@st.com
---

diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 521ba83545db..97912e2c663d 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -1145,8 +1145,9 @@ int ltdc_load(struct drm_device *ddev)
 
 	ldev->pixel_clk = devm_clk_get(dev, "lcd");
 	if (IS_ERR(ldev->pixel_clk)) {
-		DRM_ERROR("Unable to get lcd clock\n");
-		return -ENODEV;
+		if (PTR_ERR(ldev->pixel_clk) != -EPROBE_DEFER)
+			DRM_ERROR("Unable to get lcd clock\n");
+		return PTR_ERR(ldev->pixel_clk);
 	}
 
 	if (clk_prepare_enable(ldev->pixel_clk)) {