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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-17 15:43:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-17 15:43:52 -0700 |
| commit | 0cfd81031a26717fe14380d18275f8e217571615 (patch) | |
| tree | 78a84e4cb97e7f45eb77dc0fbd8857a5dd717869 /drivers/usb/host/uhci-q.c | |
| parent | f7ea4a4ba84f382e8eb143e435551de0feee5b4b (diff) | |
| parent | 802f389a2cc6e2771b8de915ac241456d41eb79e (diff) | |
| download | op-kernel-dev-0cfd81031a26717fe14380d18275f8e217571615.zip op-kernel-dev-0cfd81031a26717fe14380d18275f8e217571615.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (94 commits)
USB: remove err() macro from more usb drivers
USB: remove err() macro from usb misc drivers
USB: remove err() macro from usb core code
USB: remove err() macro from usb class drivers
USB: remove use of err() in drivers/usb/serial
USB: remove info() macro from usb mtd drivers
USB: remove info() macro from usb input drivers
USB: remove info() macro from usb network drivers
USB: remove info() macro from remaining usb drivers
USB: remove info() macro from usb/misc drivers
USB: remove info() macro from usb/serial drivers
USB: remove warn macro from HID core
USB: remove warn() macro from usb drivers
USB: remove warn() macro from usb net drivers
USB: remove warn() macro from usb media drivers
USB: remove warn() macro from usb input drivers
usb/fsl_qe_udc: clear data toggle on clear halt request
usb/fsl_qe_udc: fix response to get status request
fsl_usb2_udc: Fix oops on probe failure.
fsl_usb2_udc: Add a wmb before priming endpoint.
...
Diffstat (limited to 'drivers/usb/host/uhci-q.c')
| -rw-r--r-- | drivers/usb/host/uhci-q.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 1f0c2cf..5631d89 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -1065,13 +1065,18 @@ static int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb, } if (exponent < 0) return -EINVAL; - qh->period = 1 << exponent; - qh->skel = SKEL_INDEX(exponent); - /* For now, interrupt phase is fixed by the layout - * of the QH lists. */ - qh->phase = (qh->period / 2) & (MAX_PHASE - 1); - ret = uhci_check_bandwidth(uhci, qh); + /* If the slot is full, try a lower period */ + do { + qh->period = 1 << exponent; + qh->skel = SKEL_INDEX(exponent); + + /* For now, interrupt phase is fixed by the layout + * of the QH lists. + */ + qh->phase = (qh->period / 2) & (MAX_PHASE - 1); + ret = uhci_check_bandwidth(uhci, qh); + } while (ret != 0 && --exponent >= 0); if (ret) return ret; } else if (qh->period > urb->interval) |
