diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-05-21 09:17:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-21 09:17:50 +0200 |
| commit | bb27f55eb9405257a59c82550dbb0d684cc3a665 (patch) | |
| tree | bdab5866709e6ac7eeef7493d7d73bbd3d6231b6 /drivers/usb/core | |
| parent | b732d439cb43336cd6d7e804ecb2c81193ef63b0 (diff) | |
| parent | 5e1c81d98a5621007824b49dde556fead5ff9c6c (diff) | |
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Fixes for perf/core:
- Rename some perf_target methods to avoid double negation, from Namhyung Kim.
- Revert change to use per task events with inheritance, from Namhyung Kim.
- Events should start disabled till children starts running, from David Ahern.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/hcd-pci.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 622b4a48e73..57ed9e400c0 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -493,6 +493,15 @@ static int hcd_pci_suspend_noirq(struct device *dev) pci_save_state(pci_dev); + /* + * Some systems crash if an EHCI controller is in D3 during + * a sleep transition. We have to leave such controllers in D0. + */ + if (hcd->broken_pci_sleep) { + dev_dbg(dev, "Staying in PCI D0\n"); + return retval; + } + /* If the root hub is dead rather than suspended, disallow remote * wakeup. usb_hc_died() should ensure that both hosts are marked as * dying, so we only need to check the primary roothub. |