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PCI: Remove the obsolete no_pci_devices() check 

In function pci_get_subsys() there is a check:

	/*
	 * pci_find_subsys() can be called on the ide_setup() path,
	 * super-early in boot.  But the down_read() will enable local
	 * interrupts, which can cause some machines to crash.  So here we
	 * detect and flag that situation and bail out early.
	 */
	if (unlikely(no_pci_devices()))
		return NULL;

But there is no ide_setup() now, and no down_read() either, which
makes the check obsolete. So remove it.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Feng Tang 2012-08-23 15:45:47 +08:00 committed by Bjorn Helgaas
parent b9443f401b
commit e9bf1040f6
1 changed files with 0 additions and 9 deletions
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9
drivers/pci/search.c
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@ -252,15 +252,6 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
.subdevice = ss_device,
};
/*
* pci_find_subsys() can be called on the ide_setup() path,
* super-early in boot. But the down_read() will enable local
* interrupts, which can cause some machines to crash. So here we
* detect and flag that situation and bail out early.
*/
if (unlikely(no_pci_devices()))
return NULL;
return pci_get_dev_by_id(&id, from);
}