[v2,1/2] raw/ifpga/base: unlock mutex when nios init fail
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Commit Message
In fme_nios_spi_init(), a mutex is locked for protecting nios
initialization process, the mutex is only unlocked when process
is successful, it should also be unlocked when process fail.
Fixes: e41856b515ce ("raw/ifpga/base: enhance driver reliability in multi-process")
Coverity issue: 363751
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/ifpga/base/ifpga_fme.c | 2 ++
1 file changed, 2 insertions(+)
Comments
Hi,
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, November 05, 2020 10:06
> To: dev@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Cc: stable@dpdk.org; Huang, Wei <wei.huang@intel.com>
> Subject: [PATCH v2 1/2] raw/ifpga/base: unlock mutex when nios init fail
>
> In fme_nios_spi_init(), a mutex is locked for protecting nios initialization
> process, the mutex is only unlocked when process is successful, it should also
> be unlocked when process fail.
>
> Fixes: e41856b515ce ("raw/ifpga/base: enhance driver reliability in multi-
> process") Coverity issue: 363751
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> drivers/raw/ifpga/base/ifpga_fme.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/raw/ifpga/base/ifpga_fme.c
> b/drivers/raw/ifpga/base/ifpga_fme.c
> index 540bb1110..f29ff3159 100644
> --- a/drivers/raw/ifpga/base/ifpga_fme.c
> +++ b/drivers/raw/ifpga/base/ifpga_fme.c
> @@ -1115,6 +1115,8 @@ static int fme_nios_spi_init(struct ifpga_feature
> *feature)
> ret = nios_spi_wait_init_done(spi_master);
> if (ret != 0) {
> dev_err(fme, "FME NIOS_SPI init fail\n");
> + if (spi_master->mutex)
> + pthread_mutex_unlock(spi_master->mutex);
> goto release_dev;
> }
>
> --
> 2.29.2
Acked-by: Rosen Xu <rosen.xu@intel.com>
@@ -1115,6 +1115,8 @@ static int fme_nios_spi_init(struct ifpga_feature *feature)
ret = nios_spi_wait_init_done(spi_master);
if (ret != 0) {
dev_err(fme, "FME NIOS_SPI init fail\n");
+ if (spi_master->mutex)
+ pthread_mutex_unlock(spi_master->mutex);
goto release_dev;
}