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-rw-r--r--drivers/usb/serial/keyspan_pda.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index d62547a90a6f..f4e5267f54d8 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -552,7 +552,7 @@ static int keyspan_pda_write(struct tty_struct *tty,
rc = count;
exit:
- if (rc < 0)
+ if (rc <= 0)
set_bit(0, &port->write_urbs_free);
return rc;
}