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authorJohan Hovold <johan@kernel.org>2014-11-18 11:25:20 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-12-06 15:55:36 -0800
commitdbd6c26905fce3216984355ca24635ba4a518592 (patch)
tree6d5c2d6e071b04dc7783ff5beb3bbbb79341db68
parenta7c5733278eff6dd467971dd4f82e818cb65a014 (diff)
USB: keyspan: fix overrun-error reporting
commit 855515a6d3731242d85850a206f2ec084c917338 upstream. Fix reporting of overrun errors, which are not associated with a character. Instead insert a null character and report only once. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/serial/keyspan.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 265c6776b081..8a244266c240 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -311,12 +311,13 @@ static void usa26_indat_callback(struct urb *urb)
if ((data[0] & 0x80) == 0) {
/* no errors on individual bytes, only
possible overrun err */
- if (data[0] & RXERROR_OVERRUN)
- err = TTY_OVERRUN;
- else
- err = 0;
+ if (data[0] & RXERROR_OVERRUN) {
+ tty_insert_flip_char(&port->port, 0,
+ TTY_OVERRUN);
+ }
for (i = 1; i < urb->actual_length ; ++i)
- tty_insert_flip_char(&port->port, data[i], err);
+ tty_insert_flip_char(&port->port, data[i],
+ TTY_NORMAL);
} else {
/* some bytes had errors, every byte has status */
dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
@@ -790,13 +791,13 @@ static void usa90_indat_callback(struct urb *urb)
if ((data[0] & 0x80) == 0) {
/* no errors on individual bytes, only
possible overrun err*/
- if (data[0] & RXERROR_OVERRUN)
- err = TTY_OVERRUN;
- else
- err = 0;
+ if (data[0] & RXERROR_OVERRUN) {
+ tty_insert_flip_char(&port->port, 0,
+ TTY_OVERRUN);
+ }
for (i = 1; i < urb->actual_length ; ++i)
tty_insert_flip_char(&port->port,
- data[i], err);
+ data[i], TTY_NORMAL);
} else {
/* some bytes had errors, every byte has status */
dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);