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| author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
| commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
| tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/usb/gadget/pxa27x_udc.h | |
| parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
| parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
| download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
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 e25225e..ff61e48 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; |