From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: liang.yang@amlogic.com, linux-amlogic@lists.infradead.org,
linux-mtd@lists.infradead.org, richard@nod.at,
miquel.raynal@bootlin.com
Cc: linux-arm-kernel@lists.infradead.org, marek.vasut@gmail.com,
linux-kernel@vger.kernel.org, computersforpeace@gmail.com,
dwmw2@infradead.org, bbrezillon@kernel.org,
jianxin.pan@amlogic.com,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: [PATCH 2/4] mtd: rawnand: meson: use of_property_count_elems_of_size helper
Date: Fri, 12 Apr 2019 00:00:54 +0200 [thread overview]
Message-ID: <20190411220056.19109-3-martin.blumenstingl@googlemail.com> (raw)
In-Reply-To: <20190411220056.19109-1-martin.blumenstingl@googlemail.com>
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));
if (!nsels || nsels > MAX_CE_NUM) {
dev_err(dev, "invalid register property size\n");
return -EINVAL;
--
2.21.0
next prev parent reply other threads:[~2019-04-11 22:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 22:00 [PATCH 0/4] meson-nand: small code improvements Martin Blumenstingl
2019-04-11 22:00 ` [PATCH 1/4] mtd: rawnand: meson: use struct_size macro Martin Blumenstingl
2019-04-15 6:01 ` Liang Yang
2019-04-11 22:00 ` Martin Blumenstingl [this message]
2019-04-15 6:02 ` [PATCH 2/4] mtd: rawnand: meson: use of_property_count_elems_of_size helper Liang Yang
2019-04-11 22:00 ` [PATCH 3/4] mtd: rawnand: meson: use a void pointer for meson_nfc_dma_buffer_setup Martin Blumenstingl
2019-04-15 6:03 ` Liang Yang
2019-04-11 22:00 ` [PATCH 4/4] mtd: rawnand: meson: only initialize the RB completion once Martin Blumenstingl
2019-04-15 6:04 ` Liang Yang
2019-04-18 19:44 ` Martin Blumenstingl
2019-04-19 3:52 ` Liang Yang
2019-04-19 9:00 ` Miquel Raynal
2019-04-18 16:22 ` [PATCH 0/4] meson-nand: small code improvements Miquel Raynal
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