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Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements in six functions

From Joe Perches <joe@perches.com>
Newsgroups linux.kernel
Subject Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements in six functions
Date 2015-12-15 19:20 +0100
Message-ID <qG2mB-7LE-11@gated-at.bofh.it> (permalink)
References (2 earlier) <qFflU-CN-5@gated-at.bofh.it> <qFYM2-5hd-23@gated-at.bofh.it> <qFZ5o-5o7-13@gated-at.bofh.it> <qFZoJ-5LF-13@gated-at.bofh.it> <qG1Tz-7mv-9@gated-at.bofh.it>
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On Tue, 2015-12-15 at 20:48 +0300, Dan Carpenter wrote:
> On Tue, Dec 15, 2015 at 07:02:31AM -0800, Joe Perches wrote:
> > This is the original code:
> > 
> > 	result = foo();
> > 	if (result)
> > 		goto label;
> > 
> > 	result = bar();
> > 	if (result)
> > 		goto label;
> > 
> > 	result = baz();
> > 	if (result)
> > 		goto label;
> > 
> > label:
> > 	go on...
> > 
> 
> No.  There is no test.  The original code looks like:
> 
> 	result = foo();
> 	if (result)
> 		goto out;
> 	result = baz();
> 	goto out;
> out:
> 	go on..
> 
> regards,
> dan carpenter

Here is the original code:
---------------------
	/* Copy hsm_progress struct */
	req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS);
	if (req_hpk == NULL) {
		rc = -EPROTO;
		goto out;
	}

	*req_hpk = *hpk;
	req_hpk->hpk_errval = lustre_errno_hton(hpk->hpk_errval);

	ptlrpc_request_set_replen(req);

	rc = mdc_queue_wait(req);
	goto out;
out:
	ptlrpc_req_finished(req);
	return rc;
}
---------------------

I think if the last goto out; is to be removed,
then it should be replaced by a blank line.

It separates the last operation block from the return.

cheers, Joe
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Thread

[PATCH 0/7] staging-Lustre: Fine-tuning for some function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 14:50 +0100
  [PATCH 2/7] staging: lustre: Rename a jump label for  ptlrpc_req_finished() calls SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:00 +0100
    Re: [PATCH 2/7] staging: lustre: Rename a jump label for  ptlrpc_req_finished() calls Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-14 08:00 +0100
      Re: [PATCH 2/7] staging: lustre: Rename a jump label for  ptlrpc_req_finished() calls SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-14 10:10 +0100
        Re: [PATCH 2/7] staging: lustre: Rename a jump label for  ptlrpc_req_finished() calls Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-14 10:40 +0100
          Re: staging: lustre: Rename a jump label for ptlrpc_req_finished()  calls SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-14 11:10 +0100
  [PATCH 1/7] staging: lustre: Delete unnecessary goto statements in  six functions SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:00 +0100
    Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements  in six functions Joe Perches <joe@perches.com> - 2015-12-15 15:30 +0100
      Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements  in six functions Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-15 15:50 +0100
        Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements  in six functions Joe Perches <joe@perches.com> - 2015-12-15 16:10 +0100
          Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements  in six functions Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-15 18:50 +0100
            Re: [PATCH 1/7] staging: lustre: Delete unnecessary goto statements  in six functions Joe Perches <joe@perches.com> - 2015-12-15 19:20 +0100
              Re: staging: lustre: Delete unnecessary goto statements in six  functions SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-15 19:30 +0100
                Re: staging: lustre: Delete unnecessary goto statements in six  functions Joe Perches <joe@perches.com> - 2015-12-15 19:40 +0100
                Re: staging: lustre: Delete unnecessary goto statements in six  functions SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-15 20:00 +0100
                Re: staging: lustre: Delete unnecessary goto statements in six  functions Joe Perches <joe@perches.com> - 2015-12-15 20:00 +0100
          Re: staging: lustre: Delete unnecessary goto statements in six  functions SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-15 19:10 +0100
            Re: staging: lustre: Delete unnecessary goto statements in six  functions Joe Perches <joe@perches.com> - 2015-12-15 19:30 +0100
  [PATCH 3/7] staging: lustre: Rename a jump label for a kfree(key)  call SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:00 +0100
  [PATCH 6/7] staging: lustre: A few checks less in  mgc_process_recover_log() after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:00 +0100
  [PATCH 5/7] staging: lustre: Less checks in mgc_process_recover_log()  after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:00 +0100
    Re: [PATCH 5/7] staging: lustre: Less checks in  mgc_process_recover_log() after error detection Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-14 12:10 +0100
      Re: [PATCH 5/7] staging: lustre: Less checks in  mgc_process_recover_log() after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-14 13:10 +0100
        Re: [PATCH 5/7] staging: lustre: Less checks in  mgc_process_recover_log() after error detection Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-14 13:40 +0100
          Re: staging: lustre: Less checks in mgc_process_recover_log() after  error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-14 13:50 +0100
            Re: staging: lustre: Less checks in mgc_process_recover_log() after  error detection Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-14 15:00 +0100
              Re: staging: lustre: Less checks in mgc_process_recover_log() after  error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-14 18:50 +0100
                Re: staging: lustre: Less checks in mgc_process_recover_log() after  error detection Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-15 12:50 +0100
                Re: staging: lustre: Less checks in mgc_process_recover_log() after  error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-15 16:10 +0100
  [PATCH 4/7] staging: lustre: Delete an unnecessary variable  initialisation in mgc_process_recover_log() SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:00 +0100
  [PATCH 7/7] staging: lustre: Rename a jump label for module_put()  calls SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-13 15:10 +0100
  [PATCH v2 0/4] staging-Lustre: Fine-tuning for some function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-21 20:10 +0100
    [PATCH v2 1/4] staging: lustre: Delete unnecessary goto statements in  six functions SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-21 20:10 +0100
    [PATCH v2 4/4] staging: lustre: Fix a jump label position in  osc_get_info() SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-21 20:20 +0100
    [PATCH v2 3/4] staging: lustre: Less checks in  mgc_process_recover_log() after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-21 20:20 +0100
      Re: [PATCH v2 3/4] staging: lustre: Less checks in  mgc_process_recover_log() after error detection Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-12-22 00:50 +0100
        Re: [PATCH v2 3/4] staging: lustre: Less checks in  mgc_process_recover_log() after error detection SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-22 08:20 +0100
        Re: [PATCH v2 3/4] staging: lustre: Less checks in  mgc_process_recover_log() after error detection Dan Carpenter <dan.carpenter@oracle.com> - 2015-12-22 09:10 +0100
    [PATCH v2 2/4] staging: lustre: Delete an unnecessary variable  initialisation in mgc_process_recover_log() SF Markus Elfring <elfring@users.sourceforge.net> - 2015-12-21 20:20 +0100

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