From: Ralf Baechle DL5RB <ralf@linux-mips.org>
Date: Thu, 19 Jan 2006 17:29:52 +0000 (+0000)
Subject: [PATCH] Fix mkiss locking bug
X-Git-Tag: v2.6.15.2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1bb571727a8e7311a1854f3b770f282d20466d41;p=thirdparty%2Fkernel%2Fstable.git

[PATCH] Fix mkiss locking bug

ax_encaps() forgot to drop the bufferlock at the end of the function.
Patch is already in 2.6.16-rc1.

Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 3e9accf137e71..f4424cf886c56 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -515,6 +515,7 @@ static void ax_encaps(struct net_device *dev, unsigned char *icp, int len)
 			count = kiss_esc(p, (unsigned char *)ax->xbuff, len);
 		}
   	}
+	spin_unlock_bh(&ax->buflock);
 
 	set_bit(TTY_DO_WRITE_WAKEUP, &ax->tty->flags);
 	actual = ax->tty->driver->write(ax->tty, ax->xbuff, count);