net/ifc: add devargs pointer check
Checks
Commit Message
We need to check devargs pointer before dereference it, if no devargs
specified then this driver just skips the device.
Fixes: 40ef35f4a504 ("net/ifc: detect if VDPA mode is specified")
Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
---
drivers/net/ifc/ifcvf_vdpa.c | 3 +++
1 file changed, 3 insertions(+)
Comments
> -----Original Message-----
> From: Wang, Xiao W
> Sent: Tuesday, July 16, 2019 7:31 PM
> To: Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: dev@dpdk.org; Wang, Xiao W <xiao.w.wang@intel.com>
> Subject: [PATCH] net/ifc: add devargs pointer check
>
> We need to check devargs pointer before dereference it, if no devargs specified
> then this driver just skips the device.
>
> Fixes: 40ef35f4a504 ("net/ifc: detect if VDPA mode is specified")
>
> Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
> ---
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Applied to dpdk-next-net-intel
Thanks
Qi
@@ -1114,6 +1114,9 @@ ifcvf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
if (rte_eal_process_type() != RTE_PROC_PRIMARY)
return 0;
+ if (!pci_dev->device.devargs)
+ return 1;
+
kvlist = rte_kvargs_parse(pci_dev->device.devargs->args,
ifcvf_valid_arguments);
if (kvlist == NULL)