Re: [PATCH linux-next v2] drm/panel: Simplify with dev_err_probe()

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On 12/25/2023 6:26 AM, chenguanxi11234@xxxxxxx wrote:
From: Chen Haonan <chen.haonan2@xxxxxxxxxx>

dev_err_probe() can check if the error code is -EPROBE_DEFER
and can return the error code, replacing dev_err() with it
simplifies the code.

Signed-off-by: Chen Haonan <chen.haonan2@xxxxxxxxxx>

Reviewed-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>

---
  drivers/gpu/drm/panel/panel-boe-himax8279d.c | 18 ++++++------------
  1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-boe-himax8279d.c b/drivers/gpu/drm/panel/panel-boe-himax8279d.c
index 11b64acbe8a9..e225840b0d67 100644
--- a/drivers/gpu/drm/panel/panel-boe-himax8279d.c
+++ b/drivers/gpu/drm/panel/panel-boe-himax8279d.c
@@ -854,26 +854,20 @@ static int panel_add(struct panel_info *pinfo)
pinfo->pp18_gpio = devm_gpiod_get(dev, "pp18", GPIOD_OUT_HIGH);
  	if (IS_ERR(pinfo->pp18_gpio)) {
-		ret = PTR_ERR(pinfo->pp18_gpio);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to get pp18 gpio: %d\n", ret);
-		return ret;
+		return dev_err_probe(dev, PTR_ERR(pinfo->pp18_gpio),
+							 "failed to get pp18 gpio\n");
  	}
pinfo->pp33_gpio = devm_gpiod_get(dev, "pp33", GPIOD_OUT_HIGH);
  	if (IS_ERR(pinfo->pp33_gpio)) {
-		ret = PTR_ERR(pinfo->pp33_gpio);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to get pp33 gpio: %d\n", ret);
-		return ret;
+		return	dev_err_probe(dev, PTR_ERR(pinfo->pp33_gpio),
+							 "failed to get pp33 gpio\n");
  	}
pinfo->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
  	if (IS_ERR(pinfo->enable_gpio)) {
-		ret = PTR_ERR(pinfo->enable_gpio);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to get enable gpio: %d\n", ret);
-		return ret;
+		return	dev_err_probe(dev, PTR_ERR(pinfo->enable_gpio),
+						 "failed to get enable gpio\n");
  	}
drm_panel_init(&pinfo->base, dev, &panel_funcs,
--
2.25.1




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