[PATCH 1/6] mtd: r852: Fix device_create_file() usage

Richard Weinberger richard at nod.at
Mon Jun 1 14:10:49 PDT 2015


device_create_file() can fail, therefore we have to
handle this case and abort.

Signed-off-by: Richard Weinberger <richard at nod.at>
---
 drivers/mtd/nand/r852.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index baea83f..77e96d2 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -653,11 +653,15 @@ static int r852_register_nand_device(struct r852_device *dev)
 	if (sm_register_device(dev->mtd, dev->sm))
 		goto error2;
 
-	if (device_create_file(&dev->mtd->dev, &dev_attr_media_type))
+	if (device_create_file(&dev->mtd->dev, &dev_attr_media_type)) {
 		message("can't create media type sysfs attribute");
+		goto error3;
+	}
 
 	dev->card_registred = 1;
 	return 0;
+error3:
+	nand_release(dev->mtd);
 error2:
 	kfree(dev->mtd);
 error1:
-- 
1.8.4.5




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