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authorIngo Molnar <mingo@elte.hu>2012-03-05 09:20:08 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-05 09:20:08 +0100
commit737f24bda723fdf89ecaacb99fa2bf5683c32799 (patch)
tree35495fff3e9956679cb5468e74e6814c8e44ee66 /drivers/usb/core/hcd.c
parent8eedce996556d7d06522cd3a0e6069141c8dffe0 (diff)
parentb7c924274c456499264d1cfa3d44063bb11eb5db (diff)
Merge branch 'perf/urgent' into perf/core
Conflicts: tools/perf/builtin-record.c tools/perf/builtin-top.c tools/perf/perf.h tools/perf/util/top.h Merge reason: resolve these cherry-picking conflicts. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/usb/core/hcd.c')
-rw-r--r--drivers/usb/core/hcd.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index eb19cba34ac..e1282328fc2 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2447,8 +2447,10 @@ int usb_add_hcd(struct usb_hcd *hcd,
&& device_can_wakeup(&hcd->self.root_hub->dev))
dev_dbg(hcd->self.controller, "supports USB remote wakeup\n");
- /* enable irqs just before we start the controller */
- if (usb_hcd_is_primary_hcd(hcd)) {
+ /* enable irqs just before we start the controller,
+ * if the BIOS provides legacy PCI irqs.
+ */
+ if (usb_hcd_is_primary_hcd(hcd) && irqnum) {
retval = usb_hcd_request_irqs(hcd, irqnum, irqflags);
if (retval)
goto err_request_irq;