From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: greg@kroah.com, linux-serial@vger.kernel.org
Subject: [PATCH] tty: Fix hvc return
Date: Mon, 17 Sep 2012 12:03:39 +0100 [thread overview]
Message-ID: <20120917110324.30537.26940.stgit@localhost.localdomain> (raw)
From: Alan Cox <alan@linux.intel.com>
HVC returns a size of -1 bytes for the write room in some cases.
This is bogus and not handled by the tty layer at all.
Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/tty/hvc/hvc_console.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index b57dcbd..a5dec1c 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -568,7 +568,7 @@ static int hvc_write_room(struct tty_struct *tty)
struct hvc_struct *hp = tty->driver_data;
if (!hp)
- return -1;
+ return 0;
return hp->outbuf_size - hp->n_outbuf;
}
reply other threads:[~2012-09-17 10:45 UTC|newest]
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