Hold RTNL while calling dev_close()
authorBen Hutchings <bhutchings@solarflare.com>
Tue, 6 May 2008 18:41:48 +0000 (19:41 +0100)
committerJeff Garzik <jgarzik@redhat.com>
Fri, 27 Jun 2008 05:31:52 +0000 (01:31 -0400)
dev_close() must be called holding the RTNL.  Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/net/wan/x25_asy.c

index 249e18053d5fa4a2d6e29a60e33878bbe1f78c90..069f8bb0a99fa401e254a03ff94a77a4217d58b5 100644 (file)
@@ -32,6 +32,7 @@
 #include <linux/x25.h>
 #include <linux/lapb.h>
 #include <linux/init.h>
+#include <linux/rtnetlink.h>
 #include "x25_asy.h"
 
 #include <net/x25device.h>
@@ -601,8 +602,10 @@ static void x25_asy_close_tty(struct tty_struct *tty)
        if (!sl || sl->magic != X25_ASY_MAGIC)
                return;
 
+       rtnl_lock();
        if (sl->dev->flags & IFF_UP)
                dev_close(sl->dev);
+       rtnl_unlock();
 
        tty->disc_data = NULL;
        sl->tty = NULL;