From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Thu, 19 Jul 2012 17:39:33 +0000 (-0700)
Subject: staging: comedi: comedidev.h: introduce comedi_to_pci_dev() helper
X-Git-Tag: next-20120724~21^2~144
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ddb01367b85df2c4c773bde047e5b04b6de1835b;p=karo-tx-linux.git

staging: comedi: comedidev.h: introduce comedi_to_pci_dev() helper

Introduce a wrapper for to_pci_dev() to allow the comedi_pci_drivers
to store the pci_dev pointer in the comedi_device hw_dev variable and
retrieve it easily.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbot <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index de8c99c34070..f713783ef624 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -446,6 +446,11 @@ static inline void comedi_set_hw_dev(struct comedi_device *dev,
 	}
 }
 
+static inline struct pci_dev *comedi_to_pci_dev(struct comedi_device *dev)
+{
+	return dev->hw_dev ? to_pci_dev(dev->hw_dev) : NULL;
+}
+
 int comedi_buf_put(struct comedi_async *async, short x);
 int comedi_buf_get(struct comedi_async *async, short *x);