Messages in this thread | | | Subject | Re: [PATCH 2/4] mtd: rawnand: meson: use of_property_count_elems_of_size helper | From | Liang Yang <> | Date | Mon, 15 Apr 2019 14:02:26 +0800 |
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On 2019/4/12 6:00, Martin Blumenstingl wrote: > Use the of_property_count_elems_of_size() helper instead of open-coding > it's logic. As a bonus this will now error out if the "reg" property > values use an incorrect size (anything other than sizeof(u32)). > > Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > --- > drivers/mtd/nand/raw/meson_nand.c | 5 +---- > 1 file changed, 1 insertion(+), 4 deletions(-) > > diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c > index c1a6af57dab5..9a6023638101 100644 > --- a/drivers/mtd/nand/raw/meson_nand.c > +++ b/drivers/mtd/nand/raw/meson_nand.c > @@ -1233,10 +1233,7 @@ meson_nfc_nand_chip_init(struct device *dev, > int ret, i; > u32 tmp, nsels; > > - if (!of_get_property(np, "reg", &nsels)) > - return -EINVAL; > - > - nsels /= sizeof(u32); > + nsels = of_property_count_elems_of_size(np, "reg", sizeof(u32)); Tested-by:Liang Yang <liang.yang@amlogic.com> Acked-by: Liang Yang <liang.yang@amlogic.com> > if (!nsels || nsels > MAX_CE_NUM) { > dev_err(dev, "invalid register property size\n"); > return -EINVAL; >
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