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| author | Alan Stern <stern@rowland.harvard.edu> | 2013-10-18 11:16:07 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-19 14:08:04 -0700 |
| commit | 7c71c6e6befd4b234e166f2f40d4430bacc779e6 (patch) | |
| tree | 9d44db70c118963e12b052ecc9f6f3affe0878a6 /drivers/usb/host/ohci-hub.c | |
| parent | 4a71f242e51767e75c7ecdba890debab2c0dceaf (diff) | |
| download | linux-7c71c6e6befd4b234e166f2f40d4430bacc779e6.tar.gz linux-7c71c6e6befd4b234e166f2f40d4430bacc779e6.tar.bz2 linux-7c71c6e6befd4b234e166f2f40d4430bacc779e6.zip | |
USB: OHCI: fix and explain sparse errors
This patch fixes an endian-related error in ohci-hcd (detected by
sparse) and clarifies a comment explaining a peculiar locking
arrangement that sparse warns about.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ohci-hub.c')
| -rw-r--r-- | drivers/usb/host/ohci-hub.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 2347ab83f046..61705a760e7d 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -212,10 +212,11 @@ __acquires(ohci->lock) /* Sometimes PCI D3 suspend trashes frame timings ... */ periodic_reinit (ohci); - /* the following code is executed with ohci->lock held and - * irqs disabled if and only if autostopped is true + /* + * The following code is executed with ohci->lock held and + * irqs disabled if and only if autostopped is true. This + * will cause sparse to warn about a "context imbalance". */ - skip_resume: /* interrupts might have been disabled */ ohci_writel (ohci, OHCI_INTR_INIT, &ohci->regs->intrenable); @@ -531,7 +532,7 @@ ohci_hub_descriptor ( temp |= 0x0010; else if (rh & RH_A_OCPM) /* per-port overcurrent reporting? */ temp |= 0x0008; - desc->wHubCharacteristics = (__force __u16)cpu_to_hc16(ohci, temp); + desc->wHubCharacteristics = cpu_to_le16(temp); /* ports removable, and usb 1.0 legacy PortPwrCtrlMask */ rh = roothub_b (ohci); |