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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-08 23:21:04 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-08 23:21:04 +0300 |
| commit | 988addf82e4c03739375279de73929580a2d4a6a (patch) | |
| tree | 989ae1cd4e264bbad80c65f04480486246e7b9f3 /drivers/usb/gadget/pxa27x_udc.h | |
| parent | 004c1c7096659d352b83047a7593e91d8a30e3c5 (diff) | |
| parent | 25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff) | |
| download | linux-988addf82e4c03739375279de73929580a2d4a6a.tar.xz | |
Merge branch 'origin' into devel-stable
Conflicts:
arch/arm/mach-mx2/devices.c
arch/arm/mach-mx2/devices.h
sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'drivers/usb/gadget/pxa27x_udc.h')
| -rw-r--r-- | drivers/usb/gadget/pxa27x_udc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/gadget/pxa27x_udc.h b/drivers/usb/gadget/pxa27x_udc.h index e25225e26586..ff61e4866e8a 100644 --- a/drivers/usb/gadget/pxa27x_udc.h +++ b/drivers/usb/gadget/pxa27x_udc.h @@ -318,6 +318,11 @@ struct udc_usb_ep { * @queue: requests queue * @lock: lock to pxa_ep data (queues and stats) * @enabled: true when endpoint enabled (not stopped by gadget layer) + * @in_handle_ep: number of recursions of handle_ep() function + * Prevents deadlocks or infinite recursions of types : + * irq->handle_ep()->req_done()->req.complete()->pxa_ep_queue()->handle_ep() + * or + * pxa_ep_queue()->handle_ep()->req_done()->req.complete()->pxa_ep_queue() * @idx: endpoint index (1 => epA, 2 => epB, ..., 24 => epX) * @name: endpoint name (for trace/debug purpose) * @dir_in: 1 if IN endpoint, 0 if OUT endpoint @@ -346,6 +351,7 @@ struct pxa_ep { spinlock_t lock; /* Protects this structure */ /* (queues, stats) */ unsigned enabled:1; + unsigned in_handle_ep:1; unsigned idx:5; char *name; |