From 9ec1f58b9a8ecd72e675c33bfe8ceaf1bc0dc4c5 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Mon, 28 Jul 2014 18:11:37 +0200
Subject: [PATCH] NFC: st21nfca: Fix logic when setting session_id

If dev_num >= ST21NFCA_NUM_DEVICES, the driver was returning an incorrect
success return code.

Once dev_num is set, it was not stated as busy.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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