diff options
| author |   Li Yang <leoli@freescale.com> | 2009-02-13 16:14:39 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-02-27 14:40:50 -0800 |
| commit | 9a6e184c804b33a2c2ea974efcd3c9798d30cb39 (patch) | |
| tree | e25af5858e2c2b19c969d14675d64006cdba2030 /drivers/usb/gadget/fsl_usb2_udc.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable (diff) | |
| download | linux-dev-9a6e184c804b33a2c2ea974efcd3c9798d30cb39.tar.xz linux-dev-9a6e184c804b33a2c2ea974efcd3c9798d30cb39.zip | |
USB: fsl_usb2_udc: fix potential queue head corruption
Clear next TD field and status field in queue head initialization code
to prevent unpredictable result caused by residue of usb reset.
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/usb/gadget/fsl_usb2_udc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index f3c6703cffda..d8d9a52a44b3 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -404,7 +404,10 @@ static void struct_ep_qh_setup(struct fsl_udc *udc, unsigned char ep_num, } if (zlt) tmp |= EP_QUEUE_HEAD_ZLT_SEL; + p_QH->max_pkt_length = cpu_to_le32(tmp); + p_QH->next_dtd_ptr = 1; + p_QH->size_ioc_int_sts = 0; return; } |