[PATCH 4/8] sta2x11-mfd : only add sta2x11_mfd if it hasn't already been added

From: ciminaghi
Date: Wed Sep 12 2012 - 06:13:21 EST


From: Davide Ciminaghi <ciminaghi@xxxxxxxxx>

The pci probe method is called twice now, so we have to call
sta2x11_mfd_add() only once to avoid a -EBUSY error.

Signed-off-by: Davide Ciminaghi <ciminaghi@xxxxxxxxx>
---
drivers/mfd/sta2x11-mfd.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index a9eeba1..82fe356 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -561,7 +561,8 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
sta2x11_mfd_setup(pdev, setup_data);

/* Record this pdev before mfd_add_devices: their probe looks for it */
- sta2x11_mfd_add(pdev, GFP_ATOMIC);
+ if (!sta2x11_mfd_find(pdev))
+ sta2x11_mfd_add(pdev, GFP_ATOMIC);

/* Just 2 bars for all mfd's at present */
for (i = 0; i < 2; i++) {
--
1.7.9.1

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