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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/host/xhci.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/host/xhci.c')
-rw-r--r--drivers/usb/host/xhci.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 6bbe3c3a7111..c939f5fdef9e 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -352,6 +352,11 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd)
/* hcd->irq is -1, we have MSI */
return 0;
+ if (!pdev->irq) {
+ xhci_err(xhci, "No msi-x/msi found and no IRQ in BIOS\n");
+ return -EINVAL;
+ }
+
/* fall back to legacy interrupt*/
ret = request_irq(pdev->irq, &usb_hcd_irq, IRQF_SHARED,
hcd->irq_descr, hcd);