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| author |   Clemens Ladisch <clemens@ladisch.de> | 2010-03-01 17:18:56 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-19 07:24:06 -0700 |
| commit | 1082f57abfa26590b60c43f503afb24102a37016 (patch) | |
| tree | 05f1d88c99c0e9a2cd65c830f16ac92a3bc18ecb /drivers/usb/host/ehci.h | |
| parent | USB: EHCI: fix ITD list order (diff) | |
| download | linux-dev-1082f57abfa26590b60c43f503afb24102a37016.tar.xz linux-dev-1082f57abfa26590b60c43f503afb24102a37016.zip | |
USB: EHCI: adjust ehci_iso_stream for changes in ehci_qh
The EHCI driver stores in usb_host_endpoint.hcpriv a pointer to either
an ehci_qh or an ehci_iso_stream structure, and uses the contents of the
hw_info1 field to distinguish the two cases.
After ehci_qh was split into hw and sw parts, ehci_iso_stream must also
be adjusted so that it again looks like an ehci_qh structure.
This fixes a NULL pointer access in ehci_endpoint_disable() when it
tries to access qh->hw->hw_info1.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: Colin Fletcher <colin.m.fletcher@googlemail.com>
Cc: stable <stable@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci.h')
| -rw-r--r-- | drivers/usb/host/ehci.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 2d85e21ff282..b1dce96dd621 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -394,9 +394,8 @@ struct ehci_iso_sched { * acts like a qh would, if EHCI had them for ISO. */ struct ehci_iso_stream { - /* first two fields match QH, but info1 == 0 */ - __hc32 hw_next; - __hc32 hw_info1; + /* first field matches ehci_hq, but is NULL */ + struct ehci_qh_hw *hw; u32 refcount; u8 bEndpointAddress; |