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authorRafał Miłecki <zajec5@gmail.com>2012-01-14 02:58:38 +0400
committerJohn W. Linville <linville@tuxdriver.com>2012-01-17 00:01:15 +0400
commit28e7d218da975f6ae1751e293aed938952c55c98 (patch)
tree82da2fb45b994ca5f4dfd560fa5c71faa7e4a640 /drivers/bcma
parent8675b505a4df40394096948453a17cc5445f6538 (diff)
downloadlinux-28e7d218da975f6ae1751e293aed938952c55c98.tar.xz
bcma: invalidate the mapped core over suspend/resume
This clears the currently mapped core when suspending, to force re-mapping after resume. Without that we were touching default core registers believing some other core is mapped. Such a behaviour resulted in lockups on some machines. Cc: stable@vger.kernel.org Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma')
-rw-r--r--drivers/bcma/host_pci.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index 443b83a2fd7a..c1ca9e3ada5c 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -237,11 +237,14 @@ static void bcma_host_pci_remove(struct pci_dev *dev)
#ifdef CONFIG_PM
static int bcma_host_pci_suspend(struct pci_dev *dev, pm_message_t state)
{
+ struct bcma_bus *bus = pci_get_drvdata(dev);
+
/* Host specific */
pci_save_state(dev);
pci_disable_device(dev);
pci_set_power_state(dev, pci_choose_state(dev, state));
+ bus->mapped_core = NULL;
return 0;
}