Re: [PATCH] SUNRPC: Clear xpt_bc_xprt if xs_setup_bc_tcp failed

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On Jan 6, 2014, at 23:41, Kinglong Mee <kinglongmee@xxxxxxxxx> wrote:

> If try_module_get failed, xpt_bc_xprt should be set to NULL,
> because xprt will be free.
> 
> Don't needed using xprt_put to free xprt, because it is always new.
> 
> Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
> ---
> net/sunrpc/xprtsock.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
> index 4fcdf74..5ed124f 100644
> --- a/net/sunrpc/xprtsock.c
> +++ b/net/sunrpc/xprtsock.c
> @@ -2986,10 +2986,10 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
> 	 */
> 	xprt_set_connected(xprt);
> 
> -
> 	if (try_module_get(THIS_MODULE))
> 		return xprt;
> -	xprt_put(xprt);
> +
> +	args->bc_xprt->xpt_bc_xprt = NULL;
> 	ret = ERR_PTR(-EINVAL);
> out_err:
> 	xs_xprt_free(xprt);


Just move the 'args->bc_xprt->xpt_bc_xprt = xprt’ line into the caller (see earlier discussion about xs_setup_bc_tcp()). Quite frankly, I don’t see why the client code should be modifying this variable in the first place. An svc_xprt is a server construct.

Trond--
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