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| author | Ruslan Bilovol <ruslan.bilovol@ti.com> | 2012-08-28 16:07:11 +0300 |
|---|---|---|
| committer | Ziyann <jaraidaniel@gmail.com> | 2014-10-01 12:59:02 +0200 |
| commit | 41ef9df5a45abdc8a335eb58c79e2b364b2c5d27 (patch) | |
| tree | 6f96bd38f5b344a92245d62d06fe79d64d88fb2b | |
| parent | d31196e82f2b753829fa755f2fbaaa3be6822b27 (diff) | |
| download | kernel_samsung_tuna-41ef9df5a45abdc8a335eb58c79e2b364b2c5d27.zip kernel_samsung_tuna-41ef9df5a45abdc8a335eb58c79e2b364b2c5d27.tar.gz kernel_samsung_tuna-41ef9df5a45abdc8a335eb58c79e2b364b2c5d27.tar.bz2 | |
USB: OHCI: do not poll root hub status if HC is not running
If the OHCI root hub is suspended the clocks may be
not provided to HW and we get errors on OHCI registers
access. So do not poll it in such cases (like is done
for EHCI)
Change-Id: Ic81833a87c479822fe3c7f23792ee7ac7154e248
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>
| -rw-r--r-- | drivers/usb/host/ohci-hub.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 2f00040..2f89073 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -490,6 +490,9 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) int rhsc_status; unsigned long flags; + if (!HC_IS_RUNNING(hcd->state)) + return 0; + spin_lock_irqsave (&ohci->lock, flags); if (!HCD_HW_ACCESSIBLE(hcd)) goto done; |