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authorRandall Nortman <linuxkernellist@wonderclown.com>2005-10-14 17:21:50 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-14 18:13:31 -0700
commit7a3ca7d2b5ec31b2cfa594b961d77e68075e33c7 (patch)
tree29ba927b48b3c69517954dcbf45098455d4ea6e4
parentf8cc5756dee3c2a4c56a7f089291f5ae0232747f (diff)
[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 blocks). Signed-off-by: Randall Nortman <oss@wonderclown.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/usb/serial/generic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index ddde5fb13f6..5f7d3193d35 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -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;
}