Commit 7a3ca7d2 authored by Randall Nortman's avatar Randall Nortman Committed by Linus Torvalds
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[PATCH] usbserial: Regression in USB generic serial driver

Kernel version 2.6.13 introduced a regression in the generic USB
serial converter driver (usbserial.o, drivers/usb/serial/generic.c).
The bug manifests, as far as I can tell, whenever you attempt to write
to the device -- the write will never complete (write() returns 0, or
Signed-off-by: default avatarRandall Nortman <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
Signed-off-by: default avatarLinus Torvalds <>
parent f8cc5756
......@@ -223,7 +223,7 @@ int usb_serial_generic_write_room (struct usb_serial_port *port)
dbg("%s - port %d", __FUNCTION__, port->number);
if (serial->num_bulk_out) {
if (port->write_urb_busy)
if (!(port->write_urb_busy))
room = port->bulk_out_size;
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