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SubjectRe: [PATCH] NET: sunrpc, remove unneeded NULL tests
Sorry for the slow response, this one's for Trond if it hasn't already
been handled.

--b.

On Wed, Oct 27, 2010 at 01:52:05PM +0200, Jiri Slaby wrote:
> Stanse found that req in xprt_reserve_xprt is dereferenced prior its
> test to NULL. If that's the case, the checks are unnecessary, so
> remove them.
>
> The alternative is not to dereference it before the test. The patch
> is to point out the problem, you have to decide.
>
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: "J. Bruce Fields" <bfields@fieldses.org>
> Cc: Neil Brown <neilb@suse.de>
> Cc: linux-nfs@vger.kernel.org
> ---
> net/sunrpc/xprt.c | 8 +++-----
> 1 files changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
> index 4c8f18a..5355c71 100644
> --- a/net/sunrpc/xprt.c
> +++ b/net/sunrpc/xprt.c
> @@ -202,10 +202,8 @@ int xprt_reserve_xprt(struct rpc_task *task)
> goto out_sleep;
> }
> xprt->snd_task = task;
> - if (req) {
> - req->rq_bytes_sent = 0;
> - req->rq_ntrans++;
> - }
> + req->rq_bytes_sent = 0;
> + req->rq_ntrans++;
> return 1;
>
> out_sleep:
> @@ -213,7 +211,7 @@ out_sleep:
> task->tk_pid, xprt);
> task->tk_timeout = 0;
> task->tk_status = -EAGAIN;
> - if (req && req->rq_ntrans)
> + if (req->rq_ntrans)
> rpc_sleep_on(&xprt->resend, task, NULL);
> else
> rpc_sleep_on(&xprt->sending, task, NULL);
> --
> 1.7.3.1
>
>


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