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| author |   Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-03-11 13:46:17 -0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-03-13 18:07:10 -0700 |
| commit | 4814030ce11f08350b7a91573487ad4b600dae34 (patch) | |
| tree | f0df7a6418a7f84173faf068b125ef673ff79e35 /drivers/usb/core/hcd.c | |
| parent | xhci: Remove references to HC_STATE_HALT. (diff) | |
| download | linux-dev-4814030ce11f08350b7a91573487ad4b600dae34.tar.xz linux-dev-4814030ce11f08350b7a91573487ad4b600dae34.zip | |
usb: Initialize hcd->state roothubs.
We would like to allow host controller drivers to stop using hcd->state.
Unfortunately, some host controller drivers use hcd->state as an
implicit way of telling the core that a controller has died. The
roothub registration functions must assume the host died if hcd->state
equals HC_STATE_HALT.
To facilitate drivers that don't want to set hcd->state to
HC_STATE_RUNNING in their initialization routines, we set the state to
running before calling the host controller's start function.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/core/hcd.c')
| -rw-r--r-- | drivers/usb/core/hcd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index b70db6e78977..a97ed6d293e9 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2347,6 +2347,7 @@ int usb_add_hcd(struct usb_hcd *hcd, (unsigned long long)hcd->rsrc_start); } + hcd->state = HC_STATE_RUNNING; retval = hcd->driver->start(hcd); if (retval < 0) { dev_err(hcd->self.controller, "startup error %d\n", retval); |