diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-11-16 16:42:59 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-11-16 16:42:59 +0100 |
| commit | 57260e4088894de25bb1837d529708c3ec705a69 (patch) | |
| tree | e7072aed15b203197549099371db55c5d4bc3c0a /sound/usb/endpoint.c | |
| parent | 2d4d07b97c0b774ea9ce2a2105818208d3df7241 (diff) | |
| parent | 3d5e2abe6e265acc5e1fda810301243e9bac92b2 (diff) | |
Merge tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes
From Sascha Hauer <s.hauer@pengutronix.de>:
ARM i.MX fixes for 3.7-rc
* tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx: ehci: fix host power mask bit
ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'sound/usb/endpoint.c')
| -rw-r--r-- | sound/usb/endpoint.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 7f78c6d782b..34de6f2faf6 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -35,6 +35,7 @@ #define EP_FLAG_ACTIVATED 0 #define EP_FLAG_RUNNING 1 +#define EP_FLAG_STOPPING 2 /* * snd_usb_endpoint is a model that abstracts everything related to an @@ -502,10 +503,20 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep) if (alive) snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n", alive, ep->ep_num); + clear_bit(EP_FLAG_STOPPING, &ep->flags); return 0; } +/* sync the pending stop operation; + * this function itself doesn't trigger the stop operation + */ +void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep) +{ + if (ep && test_bit(EP_FLAG_STOPPING, &ep->flags)) + wait_clear_urbs(ep); +} + /* * unlink active urbs. */ @@ -918,6 +929,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, if (wait) wait_clear_urbs(ep); + else + set_bit(EP_FLAG_STOPPING, &ep->flags); } } |