From: Tianfei Zhang <tianfei.zhang@intel.com>
Date: Fri, 21 Jun 2019 08:40:14 +0000 (+0800)
Subject: raw/ifpga/base: fix logically dead code
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8e80eb4e6222c961f7d79c26dfae8123c4284b8f;p=dpdk.git

raw/ifpga/base: fix logically dead code

add temporary variable in max10_reg_write().

Coverity issue: 337927
Fixes: 96ebfcf ("raw/ifpga/base: add SPI and MAX10 device driver")
Cc: stable@dpdk.org

Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
---

diff --git a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
index f354ee4b61..3ff6575d71 100644
--- a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
+++ b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
@@ -17,11 +17,13 @@ int max10_reg_read(unsigned int reg, unsigned int *val)
 
 int max10_reg_write(unsigned int reg, unsigned int val)
 {
+	unsigned int tmp = val;
+
 	if (!g_max10)
 		return -ENODEV;
 
 	return spi_transaction_write(g_max10->spi_tran_dev,
-			reg, 4, (unsigned char *)&val);
+			reg, 4, (unsigned char *)&tmp);
 }
 
 struct intel_max10_device *
@@ -57,7 +59,7 @@ intel_max10_device_probe(struct altera_spi_device *spi,
 
 	/* set PKVL Polling manually in BBS */
 	ret = max10_reg_write(PKVL_POLLING_CTRL, 0x3);
-	if (ret) {
+	if (ret != 0) {
 		dev_err(dev, "%s set PKVL polling fail\n", __func__);
 		goto spi_tran_fail;
 	}