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From: Pavel Skripkin <paskripkin@gmail.com>
To: kvalo@codeaurora.org, davem@davemloft.net, chunkeey@gmail.com
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kernel-mentees@lists.linuxfoundation.org,
	Pavel Skripkin <paskripkin@gmail.com>
Subject: [PATCH] net: ath10: add missing ret initialization
Date: Wed, 23 Jun 2021 22:14:26 +0300	[thread overview]
Message-ID: <20210623191426.13648-1-paskripkin@gmail.com> (raw)

In case of not supported chip the code jump
to the error handling path, but _ret_ will be set to 0.
Returning 0 from probe means, that ->probe() succeeded, but
it's not true when chip is not supported.

Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e7fde635e0ee..36ea8debd1c7 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3697,11 +3697,15 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	}
 
 	bus_params.chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
-	if (bus_params.chip_id == 0xffffffff)
+	if (bus_params.chip_id == 0xffffffff) {
+		ret = -ENODEV;
 		goto err_unsupported;
+	}
 
-	if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id))
+	if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id)) {
+		ret = -ENODEV;
 		goto err_free_irq;
+	}
 
 	ret = ath10k_core_register(ar, &bus_params);
 	if (ret) {
-- 
2.32.0


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

WARNING: multiple messages have this Message-ID (diff)
From: Pavel Skripkin <paskripkin@gmail.com>
To: kvalo@codeaurora.org, davem@davemloft.net, chunkeey@gmail.com
Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
	linux-kernel@vger.kernel.org, ath10k@lists.infradead.org,
	linux-kernel-mentees@lists.linuxfoundation.org
Subject: [PATCH] net: ath10: add missing ret initialization
Date: Wed, 23 Jun 2021 22:14:26 +0300	[thread overview]
Message-ID: <20210623191426.13648-1-paskripkin@gmail.com> (raw)

In case of not supported chip the code jump
to the error handling path, but _ret_ will be set to 0.
Returning 0 from probe means, that ->probe() succeeded, but
it's not true when chip is not supported.

Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e7fde635e0ee..36ea8debd1c7 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3697,11 +3697,15 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	}
 
 	bus_params.chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
-	if (bus_params.chip_id == 0xffffffff)
+	if (bus_params.chip_id == 0xffffffff) {
+		ret = -ENODEV;
 		goto err_unsupported;
+	}
 
-	if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id))
+	if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id)) {
+		ret = -ENODEV;
 		goto err_free_irq;
+	}
 
 	ret = ath10k_core_register(ar, &bus_params);
 	if (ret) {
-- 
2.32.0

_______________________________________________
Linux-kernel-mentees mailing list
Linux-kernel-mentees@lists.linuxfoundation.org
https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees

WARNING: multiple messages have this Message-ID (diff)
From: Pavel Skripkin <paskripkin@gmail.com>
To: kvalo@codeaurora.org, davem@davemloft.net, chunkeey@gmail.com
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kernel-mentees@lists.linuxfoundation.org,
	Pavel Skripkin <paskripkin@gmail.com>
Subject: [PATCH] net: ath10: add missing ret initialization
Date: Wed, 23 Jun 2021 22:14:26 +0300	[thread overview]
Message-ID: <20210623191426.13648-1-paskripkin@gmail.com> (raw)

In case of not supported chip the code jump
to the error handling path, but _ret_ will be set to 0.
Returning 0 from probe means, that ->probe() succeeded, but
it's not true when chip is not supported.

Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e7fde635e0ee..36ea8debd1c7 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3697,11 +3697,15 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	}
 
 	bus_params.chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
-	if (bus_params.chip_id == 0xffffffff)
+	if (bus_params.chip_id == 0xffffffff) {
+		ret = -ENODEV;
 		goto err_unsupported;
+	}
 
-	if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id))
+	if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id)) {
+		ret = -ENODEV;
 		goto err_free_irq;
+	}
 
 	ret = ath10k_core_register(ar, &bus_params);
 	if (ret) {
-- 
2.32.0


             reply	other threads:[~2021-06-23 19:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23 19:14 Pavel Skripkin [this message]
2021-06-23 19:14 ` [PATCH] net: ath10: add missing ret initialization Pavel Skripkin
2021-06-23 19:14 ` Pavel Skripkin
2021-06-23 19:23 ` Christian Lamparter
2021-06-23 19:23   ` Christian Lamparter
2021-06-23 19:23   ` Christian Lamparter
2021-06-23 19:26   ` Pavel Skripkin
2021-06-23 19:26     ` Pavel Skripkin
2021-06-23 19:26     ` Pavel Skripkin

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