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cifs: cifs_chan_is_iface_active should be called with chan_lock held
commit 7257bcf upstream. cifs_chan_is_iface_active checks the channels of a session to see if the associated iface is active. This should always happen with chan_lock held. However, these two callers of this function were missing this locking. This change makes sure the function calls are protected with proper locking. Fixes: b54034a ("cifs: during reconnect, update interface if necessary") Fixes: fa1d050 ("cifs: account for primary channel in the interface list") Cc: stable@vger.kernel.org Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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