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From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: kvalo@codeaurora.org, davem@davemloft.net,
	bjorn.andersson@linaro.org, marcel@holtmann.org,
	andy.gross@linaro.org
Cc: wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] wcn36xx: Fix error handling path in 'wcn36xx_probe()'
Date: Thu,  7 May 2020 06:36:19 +0200	[thread overview]
Message-ID: <20200507043619.200051-1-christophe.jaillet@wanadoo.fr> (raw)

In case of error, 'qcom_wcnss_open_channel()' must be undone by a call to
'rpmsg_destroy_ept()', as already done in the remove function.

Fixes: 5052de8deff5 ("soc: qcom: smd: Transition client drivers from smd to rpmsg")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Not 100% sure of the commit for Fixes, but it is consistent with the
analysis in efad8396e906 where the same call has been added in the remove
function.
---
 drivers/net/wireless/ath/wcn36xx/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index e49c306e0eef..1acdc13a74fc 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -1339,7 +1339,7 @@ static int wcn36xx_probe(struct platform_device *pdev)
 	if (addr && ret != ETH_ALEN) {
 		wcn36xx_err("invalid local-mac-address\n");
 		ret = -EINVAL;
-		goto out_wq;
+		goto out_channel;
 	} else if (addr) {
 		wcn36xx_info("mac address: %pM\n", addr);
 		SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
@@ -1347,7 +1347,7 @@ static int wcn36xx_probe(struct platform_device *pdev)
 
 	ret = wcn36xx_platform_get_resources(wcn, pdev);
 	if (ret)
-		goto out_wq;
+		goto out_channel;
 
 	wcn36xx_init_ieee80211(wcn);
 	ret = ieee80211_register_hw(wcn->hw);
@@ -1359,6 +1359,8 @@ static int wcn36xx_probe(struct platform_device *pdev)
 out_unmap:
 	iounmap(wcn->ccu_base);
 	iounmap(wcn->dxe_base);
+out_channel:
+	rpmsg_destroy_ept(wcn->smd_channel);
 out_wq:
 	ieee80211_free_hw(hw);
 out_err:
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: kvalo@codeaurora.org, davem@davemloft.net,
	bjorn.andersson@linaro.org, marcel@holtmann.org,
	andy.gross@linaro.org
Cc: wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] wcn36xx: Fix error handling path in 'wcn36xx_probe()'
Date: Thu, 07 May 2020 04:36:19 +0000	[thread overview]
Message-ID: <20200507043619.200051-1-christophe.jaillet@wanadoo.fr> (raw)

In case of error, 'qcom_wcnss_open_channel()' must be undone by a call to
'rpmsg_destroy_ept()', as already done in the remove function.

Fixes: 5052de8deff5 ("soc: qcom: smd: Transition client drivers from smd to rpmsg")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Not 100% sure of the commit for Fixes, but it is consistent with the
analysis in efad8396e906 where the same call has been added in the remove
function.
---
 drivers/net/wireless/ath/wcn36xx/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index e49c306e0eef..1acdc13a74fc 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -1339,7 +1339,7 @@ static int wcn36xx_probe(struct platform_device *pdev)
 	if (addr && ret != ETH_ALEN) {
 		wcn36xx_err("invalid local-mac-address\n");
 		ret = -EINVAL;
-		goto out_wq;
+		goto out_channel;
 	} else if (addr) {
 		wcn36xx_info("mac address: %pM\n", addr);
 		SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
@@ -1347,7 +1347,7 @@ static int wcn36xx_probe(struct platform_device *pdev)
 
 	ret = wcn36xx_platform_get_resources(wcn, pdev);
 	if (ret)
-		goto out_wq;
+		goto out_channel;
 
 	wcn36xx_init_ieee80211(wcn);
 	ret = ieee80211_register_hw(wcn->hw);
@@ -1359,6 +1359,8 @@ static int wcn36xx_probe(struct platform_device *pdev)
 out_unmap:
 	iounmap(wcn->ccu_base);
 	iounmap(wcn->dxe_base);
+out_channel:
+	rpmsg_destroy_ept(wcn->smd_channel);
 out_wq:
 	ieee80211_free_hw(hw);
 out_err:
-- 
2.25.1

             reply	other threads:[~2020-05-07  4:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-07  4:36 Christophe JAILLET [this message]
2020-05-07  4:36 ` [PATCH] wcn36xx: Fix error handling path in 'wcn36xx_probe()' Christophe JAILLET
2020-05-07  4:52 ` Bjorn Andersson
2020-05-07  4:52   ` Bjorn Andersson
2020-05-11 12:37 ` Kalle Valo
2020-05-11 12:37   ` Kalle Valo
2020-05-07 17:39 [PATCH] wcn36xx: Fix error handling path in wcn36xx_probe() Markus Elfring
2020-05-07 17:39 ` Markus Elfring
2020-05-07 17:47 ` Kalle Valo
2020-05-07 17:47   ` Kalle Valo

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