From: Linas Vepstas <linas@austin.ibm.com>
Date: Mon, 10 Jul 2006 11:44:46 +0000 (-0700)
Subject: [PATCH] pci: initialize struct pci_dev.error_state
X-Git-Tag: v2.6.18-rc2~185
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82081797b7d72108a47c82997349d1ea6a3eb3d5;p=pandora-kernel.git

[PATCH] pci: initialize struct pci_dev.error_state

The pci channel state is currently uninitialized, thus there are two ways
of indicating that "everything's OK": 0 and 1.  This is a bit of a burden.

If a devce driver wants to check if the pci channel is in a working or a
disconnected state, the driver writer must perform checks similar to

   if((pdev->error_state != 0) &&
      (pdev->error_state != pci_channel_io_normal)) {
         whatever();
   }

which is rather akward.  The first check is needed because stuct pci_dev is
inited to all-zeros.  The scond is needed because the error recovery will
set the state to pci_channel_io_normal (which is not zero).

This patch fixes this awkwardness.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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