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| author |   Rupesh Gujare <rupesh.gujare@atmel.com> | 2013-08-27 16:53:42 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-27 17:00:00 -0700 |
| commit | 0140eb27756899f0d7b2ee0af111839e4006f196 (patch) | |
| tree | b83c000b486a4594200eaa9413bd31cc418e35bc /drivers/staging/ozwpan/ozhcd.c | |
| parent | staging: comedi: ni_atmio16d: fix atmio16d_dio_insn_config() (diff) | |
| download | linux-dev-0140eb27756899f0d7b2ee0af111839e4006f196.tar.xz linux-dev-0140eb27756899f0d7b2ee0af111839e4006f196.zip | |
staging: ozwpan: Add debounce time before unregistering.
Fixes following error caused during unloading driver.
[ 1127.542888] usb 5-1: USB disconnect, device number 2
[ 1127.542909] ozwpan ozwpan: remove, state 1
[ 1127.542933] usb usb5: USB disconnect, device number 1
[ 1127.618634] hub 5-0:1.0: hub_port_status failed (err = -19)
[ 1127.618647] hub_port_connect_change: 45 callbacks suppressed
[ 1127.618657] hub 5-0:1.0: connect-debounce failed, port 1 disabled
[ 1127.618668] hub 5-0:1.0: cannot disable port 1 (err = -19)
Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/ozwpan/ozhcd.c')
| -rw-r--r-- | drivers/staging/ozwpan/ozhcd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c index 35488608df7a..4eb2f539f335 100644 --- a/drivers/staging/ozwpan/ozhcd.c +++ b/drivers/staging/ozwpan/ozhcd.c @@ -57,6 +57,10 @@ */ #define EP0_TIMEOUT_COUNTER 13 +/* Debounce time HCD driver should wait before unregistering. + */ +#define OZ_HUB_DEBOUNCE_TIMEOUT 1500 + /* * Used to link urbs together and also store some status information for each * urb. @@ -2355,6 +2359,7 @@ error: */ void oz_hcd_term(void) { + msleep(OZ_HUB_DEBOUNCE_TIMEOUT); tasklet_kill(&g_urb_process_tasklet); tasklet_kill(&g_urb_cancel_tasklet); platform_device_unregister(g_plat_dev); |