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-rw-r--r--drivers/usb/host/pci-quirks.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 118288d9442..9e81c26313f 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -260,12 +260,13 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
offset + EHCI_USBLEGCTLSTS,
val | EHCI_USBLEGCTLSTS_SOOE);
#endif
- }
- /* always say Linux will own the hardware
- * by setting EHCI_USBLEGSUP_OS.
- */
- pci_write_config_byte(pdev, offset + 3, 1);
+ /* some systems get upset if this semaphore is
+ * set for any other reason than forcing a BIOS
+ * handoff..
+ */
+ pci_write_config_byte(pdev, offset + 3, 1);
+ }
/* if boot firmware now owns EHCI, spin till
* it hands it over.