[PATCH 3.12 097/170] mac80211: don't check netdev state for debugfs read/write

Jiri Slaby
2014-07-18T13:26:01Z

From: Arik Nemtsov <arik@wizery.com>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 923eaf367206e01f22c97aee22300e332d071916 upstream.

Doing so will lead to an oops for a p2p-dev interface, since it has
no netdev.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
net/mac80211/debugfs_netdev.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index cafe614ef93d..8e41f0163c5a 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -34,8 +34,7 @@ static ssize_t ieee80211_if_read(
ssize_t ret = -EINVAL;

read_lock(&dev_base_lock);
- if (sdata->dev->reg_state == NETREG_REGISTERED)
- ret = (*format)(sdata, buf, sizeof(buf));
+ ret = (*format)(sdata, buf, sizeof(buf));
read_unlock(&dev_base_lock);

if (ret >= 0)
@@ -62,8 +61,7 @@ static ssize_t ieee80211_if_write(

ret = -ENODEV;
rtnl_lock();
- if (sdata->dev->reg_state == NETREG_REGISTERED)
- ret = (*write)(sdata, buf, count);
+ ret = (*write)(sdata, buf, count);
rtnl_unlock();

return ret;
--
2.0.0