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    Subject[PATCH 3.15 071/122] mac80211: dont check netdev state for debugfs read/write
    Date
    3.15-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Arik Nemtsov <arik@wizery.com>

    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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    net/mac80211/debugfs_netdev.c | 6 ++----
    1 file changed, 2 insertions(+), 4 deletions(-)

    --- 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;



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