diff options
| author | Elric Fu <elricfu1@gmail.com> | 2012-06-27 16:31:52 +0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2012-09-13 15:49:38 -0700 |
| commit | 6e4468b9a0793dfb53eb80d9fe52c739b13b27fd (patch) | |
| tree | f6de43852120c65707f0d7c1518a25f052025d1a /drivers/usb/host/xhci.h | |
| parent | b92cc66c047ff7cf587b318fe377061a353c120f (diff) | |
xHCI: cancel command after command timeout
The patch is used to cancel command when the command isn't
acknowledged and a timeout occurs.
This patch should be backported to kernels as old as 3.0, that contain
the commit 7ed603ecf8b68ab81f4c83097d3063d43ec73bb8 "xhci: Add an
assertion to check for virt_dev=0 bug." That commit papers over a NULL
pointer dereference, and this patch fixes the underlying issue that
caused the NULL pointer dereference.
Signed-off-by: Elric Fu <elricfu1@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Miroslav Sabljic <miroslav.sabljic@avl.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index fdfcebf342e..e81ccfa3552 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1256,6 +1256,9 @@ struct xhci_td { union xhci_trb *last_trb; }; +/* xHCI command default timeout value */ +#define XHCI_CMD_DEFAULT_TIMEOUT (5 * HZ) + /* command descriptor */ struct xhci_cd { struct list_head cancel_cmd_list; |