[NET]: Add a might_sleep() to dev_close().

Requested by Johannes Berg.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 215b8e97690a..d16dcab49c60 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1060,6 +1060,8 @@ int dev_open(struct net_device *dev)
  */
 int dev_close(struct net_device *dev)
 {
+        might_sleep();
+
         if (!(dev->flags & IFF_UP))
                 return 0;