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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2005-04-23 12:49:16 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-27 14:43:47 -0700 |
| commit | 507ca9bc0476662f3463888d583864834eab1e11 (patch) | |
| tree | 421a373de235fcb4cb46a4723a1e9f00a71f709a /drivers/usb/serial/usb-serial.c | |
| parent | f4df0e334a9fc731689e8ba4f42a0d72a7491348 (diff) | |
| download | lwn-507ca9bc0476662f3463888d583864834eab1e11.tar.gz lwn-507ca9bc0476662f3463888d583864834eab1e11.zip | |
[PATCH] USB: add ability for usb-serial drivers to determine if their write urb is currently being used.
This removes a lot of racy and buggy code by trying to check the status of the urb.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 5da76dd8fb28..0267b26dde18 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1047,6 +1047,7 @@ int usb_serial_probe(struct usb_interface *interface, memset(port, 0x00, sizeof(struct usb_serial_port)); port->number = i + serial->minor; port->serial = serial; + spin_lock_init(&port->lock); INIT_WORK(&port->work, usb_serial_port_softint, port); serial->port[i] = port; } |