From ba76ff25ee64d5cfc86209d1fbb3c294b2c04412 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 3 Sep 2019 06:29:26 +0200
Subject: [PATCH] brcmfmac: move "cfg80211_ops" pointer to another struct
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Git-commit: ba76ff25ee64d5cfc86209d1fbb3c294b2c04412
Patch-mainline: v5.4-rc1
References: jsc#SLE-13430

This moves "ops" pointer from "struct brcmf_cfg80211_info" to the
"struct brcmf_pub". This movement makes it possible to allocate wiphy
without attaching cfg80211 (brcmf_cfg80211_attach()). It's required for
later separation of wiphy allocation and driver initialization.

While at it fix also an unlikely memory leak in the brcmf_attach().

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 1 -
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h | 1 -
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c     | 9 ++++++---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h     | 1 +
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index dd6303f5f72e..e3ebb7abbdae 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -7202,7 +7202,6 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
 	brcmf_pno_detach(cfg);
 	brcmf_btcoex_detach(cfg);
 	wiphy_unregister(cfg->wiphy);
-	kfree(cfg->ops);
 	wl_deinit_priv(cfg);
 	brcmf_free_wiphy(cfg->wiphy);
 	kfree(cfg);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
index b7b50b07f776..14d5bbad1db1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
@@ -292,7 +292,6 @@ struct brcmf_cfg80211_wowl {
  */
 struct brcmf_cfg80211_info {
 	struct wiphy *wiphy;
-	struct cfg80211_ops *ops;
 	struct brcmf_cfg80211_conf *conf;
 	struct brcmf_p2p_info p2p;
 	struct brcmf_btcoex_info *btcoex;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 21e07d1ceeae..e8c488376ff9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1224,12 +1224,15 @@ int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings)
 		return -ENOMEM;
 
 	wiphy = wiphy_new(ops, sizeof(*drvr));
-	if (!wiphy)
+	if (!wiphy) {
+		kfree(ops);
 		return -ENOMEM;
+	}
 
 	set_wiphy_dev(wiphy, dev);
 	drvr = wiphy_priv(wiphy);
 	drvr->wiphy = wiphy;
+	drvr->ops = ops;
 
 	for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
 		drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
@@ -1262,12 +1265,10 @@ int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings)
 		goto fail;
 	}
 
-	drvr->config->ops = ops;
 	return 0;
 
 fail:
 	brcmf_detach(dev);
-	kfree(ops);
 
 	return ret;
 }
@@ -1353,6 +1354,8 @@ void brcmf_detach(struct device *dev)
 
 	bus_if->drvr = NULL;
 
+	kfree(drvr->ops);
+
 	wiphy_free(drvr->wiphy);
 }
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
index 86517a3d74b1..6699637d3bf8 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -97,6 +97,7 @@ struct brcmf_pub {
 	struct brcmf_bus *bus_if;
 	struct brcmf_proto *proto;
 	struct wiphy *wiphy;
+	struct cfg80211_ops *ops;
 	struct brcmf_cfg80211_info *config;
 
 	/* Internal brcmf items */
-- 
2.16.4