2.6.32-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Mark Ferrell <mferr...@uplogix.com>
commit 5c263b92f828af6a8cf54041db45ceae5af8f2ab upstream.
* Use the buffer content length as opposed to the total buffer size. This can
be a real problem when using the mos7840 as a usb serial-console as all
kernel output is truncated during boot.
Signed-off-by: Mark Ferrell <mferr...@uplogix.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Willy Tarreau <w...@1wt.eu>
---
drivers/usb/serial/mos7840.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 9fdcee2..61829b8 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1181,9 +1181,12 @@ static int mos7840_chars_in_buffer(struct tty_struct
*tty)
}
spin_lock_irqsave(&mos7840_port->pool_lock, flags);
- for (i = 0; i < NUM_URBS; ++i)
- if (mos7840_port->busy[i])
- chars += URB_TRANSFER_BUFFER_SIZE;
+ for (i = 0; i < NUM_URBS; ++i) {
+ if (mos7840_port->busy[i]) {
+ struct urb *urb = mos7840_port->write_urb_pool[i];
+ chars += urb->transfer_buffer_length;
+ }
+ }
spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
dbg("%s - returns %d", __func__, chars);
return chars;
--
1.7.2.1.45.g54fbc
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