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[SCSI] hptiop: Eliminate a NULL pointer dereference

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The end of the function is reachable both when host is and is not NULL.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@

if ((E == NULL && ...) || ...)
{
  ... when != if (...) S1 else S2
      when != E = E1
* E->f
  ... when any
  return ...;
}
else S3
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Julia Lawall 2010-05-27 14:33:47 +02:00 committed by James Bottomley
parent 2a1b7e575b
commit 1db90ea239
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/hptiop.c
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@ -1157,7 +1157,7 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
disable_pci_device:
pci_disable_device(pcidev);
dprintk("scsi%d: hptiop_probe fail\n", host->host_no);
dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0);
return -ENODEV;
}