[PATCH v10 15/26] scsi: ufs: mediatek: Rework _ufs_mtk_clk_scale error paths

[Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>]

From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>

Errors should be printed at the correct log level. Additionally, it
looks like some "goto out"'s were omitted in the scale up case, which
looks like a mistake, as the scale down branch of the code does use
them.

Rework the error messages to make them nicer and at the correct
verbosity, and add the missing gotos.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
---
 drivers/ufs/host/ufs-mediatek.c | 41 +++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 22 deletions(-)

diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index b4867c9c2743..cc4b5f4c4a07 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -1971,16 +1971,16 @@ static void _ufs_mtk_clk_scale(struct ufs_hba *hba, bool scale_up)
 
 	ret = clk_prepare_enable(clki->clk);
 	if (ret) {
-		dev_info(hba->dev,
-			 "clk_prepare_enable() fail, ret: %d\n", ret);
+		dev_err(hba->dev, "%s: Failed to enable clock: %pe\n", __func__, ERR_PTR(ret));
 		return;
 	}
 
 	if (clk_fde_scale) {
 		ret = clk_prepare_enable(fde_clki->clk);
 		if (ret) {
-			dev_info(hba->dev,
-				 "fde clk_prepare_enable() fail, ret: %d\n", ret);
+			dev_err(hba->dev, "%s: Failed to enable FDE clock: %pe\n",
+				__func__, ERR_PTR(ret));
+			clk_disable_unprepare(clki->clk);
 			return;
 		}
 	}
@@ -1989,51 +1989,48 @@ static void _ufs_mtk_clk_scale(struct ufs_hba *hba, bool scale_up)
 		if (clk_bind_vcore) {
 			ret = regulator_set_voltage(reg, volt, INT_MAX);
 			if (ret) {
-				dev_info(hba->dev,
-					"Failed to set vcore to %d\n", volt);
+				dev_err(hba->dev, "Failed to set vcore to %d\n", volt);
 				goto out;
 			}
 		}
 
 		ret = clk_set_parent(clki->clk, mclk->ufs_sel_max_clki->clk);
 		if (ret) {
-			dev_info(hba->dev, "Failed to set clk mux, ret = %d\n",
-				ret);
+			dev_err(hba->dev, "%s: Failed to set clock mux: %pe\n",
+				__func__, ERR_PTR(ret));
+			goto out;
 		}
 
 		if (clk_fde_scale) {
-			ret = clk_set_parent(fde_clki->clk,
-				mclk->ufs_fde_max_clki->clk);
+			ret = clk_set_parent(fde_clki->clk, mclk->ufs_fde_max_clki->clk);
 			if (ret) {
-				dev_info(hba->dev,
-					"Failed to set fde clk mux, ret = %d\n",
-					ret);
+				dev_err(hba->dev, "%s: Failed to set fde clock mux: %pe\n",
+					__func__, ERR_PTR(ret));
+				goto out;
 			}
 		}
 	} else {
 		if (clk_fde_scale) {
-			ret = clk_set_parent(fde_clki->clk,
-				mclk->ufs_fde_min_clki->clk);
+			ret = clk_set_parent(fde_clki->clk, mclk->ufs_fde_min_clki->clk);
 			if (ret) {
-				dev_info(hba->dev,
-					"Failed to set fde clk mux, ret = %d\n",
-					ret);
+				dev_err(hba->dev, "%s: Failed to set fde clock mux: %pe\n",
+					__func__, ERR_PTR(ret));
 				goto out;
 			}
 		}
 
 		ret = clk_set_parent(clki->clk, mclk->ufs_sel_min_clki->clk);
 		if (ret) {
-			dev_info(hba->dev, "Failed to set clk mux, ret = %d\n",
-				ret);
+			dev_err(hba->dev, "%s: Failed to set clock mux: %pe\n",
+				__func__, ERR_PTR(ret));
 			goto out;
 		}
 
 		if (clk_bind_vcore) {
 			ret = regulator_set_voltage(reg, 0, INT_MAX);
 			if (ret) {
-				dev_info(hba->dev,
-					"failed to set vcore to MIN\n");
+				dev_err(hba->dev, "%s: Failed to set vcore to minimum: %pe\n",
+					__func__, ERR_PTR(ret));
 			}
 		}
 	}

-- 
2.55.0