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cciss: factor out CISS_signature_present()

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cciss: factor out CISS_signature_present()

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Stephen M. Cameron 2010-07-19 13:45:36 -05:00 committed by Jens Axboe
parent afadbf4b95
commit 501b92cd6b
1 changed files with 13 additions and 5 deletions
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18
drivers/block/cciss.c
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@ -4096,6 +4096,18 @@ static void __devinit cciss_find_board_params(ctlr_info_t *h)
}
}
static inline bool CISS_signature_present(ctlr_info_t *h)
{
if ((readb(&h->cfgtable->Signature[0]) != 'C') ||
(readb(&h->cfgtable->Signature[1]) != 'I') ||
(readb(&h->cfgtable->Signature[2]) != 'S') ||
(readb(&h->cfgtable->Signature[3]) != 'S')) {
dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
return false;
}
return true;
}
static int __devinit cciss_pci_init(ctlr_info_t *c)
{
int prod_index, err;
@ -4153,11 +4165,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c)
#endif /* CCISS_DEBUG */
cciss_find_board_params(c);
if ((readb(&c->cfgtable->Signature[0]) != 'C') ||
(readb(&c->cfgtable->Signature[1]) != 'I') ||
(readb(&c->cfgtable->Signature[2]) != 'S') ||
(readb(&c->cfgtable->Signature[3]) != 'S')) {
printk("Does not appear to be a valid CISS config table\n");
if (!CISS_signature_present(c)) {
err = -ENODEV;
goto err_out_free_res;
}