Re: [dpdk-dev] [PATCH] librte_vhost: Fix the path test issue

["Xie, Huawei" <huawei.xie@intel.com>]

>  		path = realpath(memfile, resolved_path);
> -		if (path == NULL) {
> +		if ((path == NULL) && (strlen(resolved_path) == 0)) {
>  			RTE_LOG(ERR, VHOST_CONFIG,
>  				"(%"PRIu64") Failed to resolve fd directory\n",
>  				dev->device_fh);
Changchun:
For some strange file, according to API description, we shouldn't check resolved_path as it is undefined.
To make the loop go on, we could use "continue" when we detect path is NULL.

RETURN VALUE
       If there is no error, realpath() returns a pointer to the resolved_path.

       Otherwise it returns a NULL pointer, and the contents of the array resolved_path are undefined, and errno is set to indicate the error.