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| author | thompsa <thompsa@FreeBSD.org> | 2009-06-02 19:28:26 +0000 |
|---|---|---|
| committer | thompsa <thompsa@FreeBSD.org> | 2009-06-02 19:28:26 +0000 |
| commit | be537b69f0c50e8b20f6d1711ae04899914aa683 (patch) | |
| tree | 155f9cc54096d86e8ea1c35ce6ac242b259dcd16 /sys/dev/usb/usb_dev.h | |
| parent | 9bb9aeed7f4aae60f4e8a69cf41cf99e5b363d08 (diff) | |
| download | FreeBSD-src-be537b69f0c50e8b20f6d1711ae04899914aa683.zip FreeBSD-src-be537b69f0c50e8b20f6d1711ae04899914aa683.tar.gz | |
Place the fifo and ref counting variables on the stack to prevent races.
Submitted by: Hans Petter Selasky
Diffstat (limited to 'sys/dev/usb/usb_dev.h')
| -rw-r--r-- | sys/dev/usb/usb_dev.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/dev/usb/usb_dev.h b/sys/dev/usb/usb_dev.h index 3f21542..fb41e5a 100644 --- a/sys/dev/usb/usb_dev.h +++ b/sys/dev/usb/usb_dev.h @@ -88,13 +88,19 @@ struct usb_cdev_privdata { struct usb_bus *bus; struct usb_device *udev; struct usb_interface *iface; - struct usb_fifo *rxfifo; - struct usb_fifo *txfifo; int bus_index; /* bus index */ int dev_index; /* device index */ int ep_addr; /* endpoint address */ int fflags; uint8_t fifo_index; /* FIFO index */ +}; + +/* + * Private per-device and per-thread reference information + */ +struct usb_cdev_refdata { + struct usb_fifo *rxfifo; + struct usb_fifo *txfifo; uint8_t is_read; /* location has read access */ uint8_t is_write; /* location has write access */ uint8_t is_uref; /* USB refcount decr. needed */ |
