linux-kernel - [PATCH] crypto: nx: use of_property_read

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Date:	Mon, 23 Nov 2015 15:26:54 +0530
From:	Saurabh Sengar <saurabh.truth@...il.com>
To:	ddstreet@...e.org, herbert@...dor.apana.org.au,
	davem@...emloft.net, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Saurabh Sengar <saurabh.truth@...il.com>
Subject: [PATCH] crypto: nx: use of_property_read_u32()

use of_propert_read_u32() for reading int value,
it can help reducing number of variables used

Signed-off-by: Saurabh Sengar <saurabh.truth@...il.com>
---
 drivers/crypto/nx/nx-842-powernv.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c
index 9ef51fa..87f7a0f 100644
--- a/drivers/crypto/nx/nx-842-powernv.c
+++ b/drivers/crypto/nx/nx-842-powernv.c
@@ -525,7 +525,6 @@ static int nx842_powernv_decompress(const unsigned char *in, unsigned int inlen,
 static int __init nx842_powernv_probe(struct device_node *dn)
 {
 	struct nx842_coproc *coproc;
-	struct property *ct_prop, *ci_prop;
 	unsigned int ct, ci;
 	int chip_id;
 
@@ -534,18 +533,16 @@ static int __init nx842_powernv_probe(struct device_node *dn)
 		pr_err("ibm,chip-id missing\n");
 		return -EINVAL;
 	}
-	ct_prop = of_find_property(dn, "ibm,842-coprocessor-type", NULL);
-	if (!ct_prop) {
+
+	if (of_property_read_u32(dn, "ibm,842-coprocessor-type", &ct)) {
 		pr_err("ibm,842-coprocessor-type missing\n");
 		return -EINVAL;
 	}
-	ct = be32_to_cpu(*(unsigned int *)ct_prop->value);
-	ci_prop = of_find_property(dn, "ibm,842-coprocessor-instance", NULL);
-	if (!ci_prop) {
+
+	if (of_property_read_u32(dn, "ibm,842-coprocessor-instance", &ci)) {
 		pr_err("ibm,842-coprocessor-instance missing\n");
 		return -EINVAL;
 	}
-	ci = be32_to_cpu(*(unsigned int *)ci_prop->value);
 
 	coproc = kmalloc(sizeof(*coproc), GFP_KERNEL);
 	if (!coproc)
-- 
1.9.1

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