clk: max77686: Fix clean-up in error and remove paths

This patch fixes invalid kfree() and adds missing call to clk_unregister()
in error and remove paths in max77686_clk_probe(). While at it, error
handling is also cleaned up.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

1 files changed, 10 insertions, 19 deletions

diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c
index 243072366aa8..4dc1832fe241 100644
--- a/drivers/clk/clk-max77686.c
+++ b/drivers/clk/clk-max77686.c
@@ -163,17 +163,9 @@ static int max77686_clk_probe(struct platform_device *pdev)
 		if (IS_ERR(clk)) {
 			ret = PTR_ERR(clk);
 
-			switch (i) {
-			case MAX77686_CLK_AP:
-				dev_err(&pdev->dev, "Fail to register CLK_AP\n");
-				goto err_clk_ap;
-			case MAX77686_CLK_CP:
-				dev_err(&pdev->dev, "Fail to register CLK_CP\n");
-				goto err_clk_cp;
-			case MAX77686_CLK_PMIC:
-				dev_err(&pdev->dev, "Fail to register CLK_PMIC\n");
-				goto err_clk_pmic;
-			}
+			dev_err(&pdev->dev, "failed to register %s\n",
+				max77686_clks[i]->hw.init->name);
+			goto err_clocks;
 		}
 	}
 
@@ -181,13 +173,12 @@ static int max77686_clk_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_clk_pmic:
-	clkdev_drop(max77686_clks[MAX77686_CLK_CP]->lookup);
-	kfree(max77686_clks[MAX77686_CLK_CP]->hw.clk);
-err_clk_cp:
-	clkdev_drop(max77686_clks[MAX77686_CLK_AP]->lookup);
-	kfree(max77686_clks[MAX77686_CLK_AP]->hw.clk);
-err_clk_ap:
+err_clocks:
+	for (--i; i >= 0; --i) {
+		clkdev_drop(max77686_clks[i]->lookup);
+		clk_unregister(max77686_clks[i]->hw.clk);
+	}
+
 	return ret;
 }
 
@@ -198,7 +189,7 @@ static int max77686_clk_remove(struct platform_device *pdev)
 
 	for (i = 0; i < MAX77686_CLKS_NUM; i++) {
 		clkdev_drop(max77686_clks[i]->lookup);
-		kfree(max77686_clks[i]->hw.clk);
+		clk_unregister(max77686_clks[i]->hw.clk);
 	}
 	return 0;
 }