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path: root/drivers/mtd/nand/oxnas_nand.c
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Diffstat (limited to 'drivers/mtd/nand/oxnas_nand.c')
-rw-r--r--drivers/mtd/nand/oxnas_nand.c27
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)