Merge branch 'for-4.15/alps' into for-linus

- New ALPS touchpad (T4, found currently on HP EliteBook 1000, Zbook Stduio
  and HP Elite book x360) support from Masaki Ota

1 files changed, 19 insertions, 8 deletions

diff --git a/drivers/mtd/nand/oxnas_nand.c b/drivers/mtd/nand/oxnas_nand.c
index 1b207aac840c..d649d5944826 100644
--- a/drivers/mtd/nand/oxnas_nand.c
+++ b/drivers/mtd/nand/oxnas_nand.c
@@ -21,7 +21,7 @@
 #include <linux/clk.h>
 #include <linux/reset.h>
 #include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/of.h>
 
@@ -112,14 +112,19 @@ static int oxnas_nand_probe(struct platform_device *pdev)
 	if (count > 1)
 		return -EINVAL;
 
-	clk_prepare_enable(oxnas->clk);
+	err = clk_prepare_enable(oxnas->clk);
+	if (err)
+		return err;
+
 	device_reset_optional(&pdev->dev);
 
 	for_each_child_of_node(np, nand_np) {
 		chip = devm_kzalloc(&pdev->dev, sizeof(struct nand_chip),
 				    GFP_KERNEL);
-		if (!chip)
-			return -ENOMEM;
+		if (!chip) {
+			err = -ENOMEM;
+			goto err_clk_unprepare;
+		}
 
 		chip->controller = &oxnas->base;
 
@@ -139,12 +144,12 @@ static int oxnas_nand_probe(struct platform_device *pdev)
 		/* Scan to find existence of the device */
 		err = nand_scan(mtd, 1);
 		if (err)
-			return err;
+			goto err_clk_unprepare;
 
 		err = mtd_device_register(mtd, NULL, 0);
 		if (err) {
 			nand_release(mtd);
-			return err;
+			goto err_clk_unprepare;
 		}
 
 		oxnas->chips[nchips] = chip;
@@ -152,12 +157,18 @@ static int oxnas_nand_probe(struct platform_device *pdev)
 	}
 
 	/* Exit if no chips found */
-	if (!nchips)
-		return -ENODEV;
+	if (!nchips) {
+		err = -ENODEV;
+		goto err_clk_unprepare;
+	}
 
 	platform_set_drvdata(pdev, oxnas);
 
 	return 0;
+
+err_clk_unprepare:
+	clk_disable_unprepare(oxnas->clk);
+	return err;
 }
 
 static int oxnas_nand_remove(struct platform_device *pdev)