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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-04-17 11:13:03 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-04-17 11:16:20 +0200
commit767878908e7cc28c440c5431f6591157d8bd4ae7 (patch)
tree5780a93e07a5643e7ee33136f54b15dd7b9cab54 /drivers/usb/core/driver.c
parent17038de5f16569a25343cf68668f3b657eafb00e (diff)
parente816b57a337ea3b755de72bec38c10c864f23015 (diff)
Merge tag 'v3.4-rc3' into drm-intel-next-queued
Backmerge Linux 3.4-rc3 into drm-intel-next to resolve a few things that conflict/depend upon patches in -rc3: - Second part of the Sandybridge workaround series - it changes some of the same registers. - Preparation for Chris Wilson's fencing cleanup - we need the fix from -rc3 merged before we can move around all that code. - Resolve the gmbus conflict - gmbus has been disabled in 3.4 again, but should be enabled on all generations in 3.5. Conflicts: drivers/gpu/drm/i915/intel_i2c.c Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/usb/core/driver.c')
-rw-r--r--drivers/usb/core/driver.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index f8e2d6d52e5c..9a56635dc19c 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1189,8 +1189,13 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
if (status == 0) {
status = usb_suspend_device(udev, msg);
- /* Again, ignore errors during system sleep transitions */
- if (!PMSG_IS_AUTO(msg))
+ /*
+ * Ignore errors from non-root-hub devices during
+ * system sleep transitions. For the most part,
+ * these devices should go to low power anyway when
+ * the entire bus is suspended.
+ */
+ if (udev->parent && !PMSG_IS_AUTO(msg))
status = 0;
}