[v1,2/2] raw/ifpga: fix logically dead code
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Commit Message
add temporary variable in max10_reg_write().
Coverity issue: 337927
Cc: stable@dpdk.org
Signed-off-by: Zhang, Tianfei <tianfei.zhang@intel.com>
---
drivers/raw/ifpga_rawdev/base/opae_intel_max10.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Comments
On 06/04, Zhang, Tianfei wrote:
>add temporary variable in max10_reg_write().
>
>Coverity issue: 337927
>Cc: stable@dpdk.org
Missing a Fixes line?
>
>Signed-off-by: Zhang, Tianfei <tianfei.zhang@intel.com>
>---
> drivers/raw/ifpga_rawdev/base/opae_intel_max10.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c b/drivers/raw/ifpga_rawdev/base/opae_intel_max10.c
>index f354ee4b6..3ff6575d7 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;
> }
>--
>2.17.1
>
> -----Original Message-----
> From: stable [mailto:stable-bounces@dpdk.org] On Behalf Of Ye Xiaolong
> Sent: Tuesday, June 4, 2019 8:27 AM
> To: Zhang, Tianfei <tianfei.zhang@intel.com>
> Cc: dev@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; stable@dpdk.org;
> Zhang@dpdk.org
> Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH v1 2/2] raw/ifpga: fix
> logically dead code
>
> On 06/04, Zhang, Tianfei wrote:
> >add temporary variable in max10_reg_write().
> >
> >Coverity issue: 337927
> >Cc: stable@dpdk.org
>
> Missing a Fixes line?
>
In this case it would be:
Fixes: 96ebfcf8125c ("raw/ifpga/base: add SPI and MAX10 device driver")
Coverity issue: 337927
John
@@ -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;
}