mtd: nand: davinci: check required ti,davinci-chipselect property

The property "ti,davinci-chipselect" is required. So we have to check
if it is set.

Reviewed-by: Grygorii Strashko <[email protected]>
Reviewed-by: Taras Kondratiuk <[email protected]>
Signed-off-by: Ivan Khoronzhuk <[email protected]>
Signed-off-by: Brian Norris <[email protected]>

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 4577fb41c0c71ba3934c6af698f7a90abe66ae09..9eea2695387192c60baa81261ddde1a6b54075ac 100644 (file)
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -545,6 +545,9 @@ static struct davinci_nand_pdata
                if (!of_property_read_u32(pdev->dev.of_node,
                        "ti,davinci-chipselect", &prop))
                        pdev->id = prop;
+               else
+                       return ERR_PTR(-EINVAL);
+
                if (!of_property_read_u32(pdev->dev.of_node,
                        "ti,davinci-mask-ale", &prop))
                        pdata->mask_ale = prop;