linux-kernel - [PATCH 4.10 043/129] mwifiex: set adapter->dev before starting to use mwifiex

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Date:   Thu, 11 May 2017 16:11:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Rajat Jain <rajatja@...gle.com>,
        Brian Norris <briannorris@...omium.org>,
        Kalle Valo <kvalo@...eaurora.org>
Subject: [PATCH 4.10 043/129] mwifiex: set adapter->dev before starting to use mwifiex_dbg()

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

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

From: Brian Norris <briannorris@...omium.org>

commit ba1c7e45ec224cc8d2df33ecaee1946d48e79231 upstream.

The mwifiex_dbg() log handler utilizes the struct device in
adapter->dev. Without it, it decides not to print anything.

As of commit 2e02b5814217 ("mwifiex: Allow mwifiex early access to device
structure"), we started assigning that pointer only after we finished
mwifiex_register() -- this effectively neuters any mwifiex_dbg() logging
done before this point.

Let's move the device assignment into mwifiex_register().

Fixes: 2e02b5814217 ("mwifiex: Allow mwifiex early access to device structure")
Cc: Rajat Jain <rajatja@...gle.com>
Signed-off-by: Brian Norris <briannorris@...omium.org>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/marvell/mwifiex/main.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -57,8 +57,8 @@ MODULE_PARM_DESC(mfg_mode, "manufacturin
  * In case of any errors during inittialization, this function also ensures
  * proper cleanup before exiting.
  */
-static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
-			    void **padapter)
+static int mwifiex_register(void *card, struct device *dev,
+			    struct mwifiex_if_ops *if_ops, void **padapter)
 {
 	struct mwifiex_adapter *adapter;
 	int i;
@@ -68,6 +68,7 @@ static int mwifiex_register(void *card,
 		return -ENOMEM;
 
 	*padapter = adapter;
+	adapter->dev = dev;
 	adapter->card = card;
 
 	/* Save interface specific operations in adapter */
@@ -1618,12 +1619,11 @@ mwifiex_add_card(void *card, struct comp
 {
 	struct mwifiex_adapter *adapter;
 
-	if (mwifiex_register(card, if_ops, (void **)&adapter)) {
+	if (mwifiex_register(card, dev, if_ops, (void **)&adapter)) {
 		pr_err("%s: software init failed\n", __func__);
 		goto err_init_sw;
 	}
 
-	adapter->dev = dev;
 	mwifiex_probe_of(adapter);
 
 	adapter->iface_type = iface_type;