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Oliver Neukum |
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From e2783e2f39ba99178dedfc1646d5cc0979d1bab3 Mon Sep 17 00:00:00 2001
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Oliver Neukum |
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From: Yang Yingliang <yangyingliang@huawei.com>
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Oliver Neukum |
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Date: Mon, 31 May 2021 17:41:28 +0300
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Oliver Neukum |
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Subject: [PATCH] ath10k: add missing error return code in ath10k_pci_probe()
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Oliver Neukum |
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Git-commit: e2783e2f39ba99178dedfc1646d5cc0979d1bab3
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Oliver Neukum |
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References: git-fixes
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Oliver Neukum |
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Patch-mainline: v5.14-rc1
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Oliver Neukum |
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Oliver Neukum |
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When chip_id is not supported, the resources will be freed
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Oliver Neukum |
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on path err_unsupported, these resources will also be freed
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Oliver Neukum |
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when calling ath10k_pci_remove(), it will cause double free,
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Oliver Neukum |
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so return -ENODEV when it doesn't support the device with wrong
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Oliver Neukum |
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chip_id.
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Oliver Neukum |
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Fixes: c0c378f9907c ("ath10k: remove target soc ps code")
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Fixes: 7505f7c3ec1d ("ath10k: create a chip revision whitelist")
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Oliver Neukum |
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Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection")
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Oliver Neukum |
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Reported-by: Hulk Robot <hulkci@huawei.com>
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Oliver Neukum |
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Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
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Oliver Neukum |
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Oliver Neukum |
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Link: https://lore.kernel.org/r/20210522105822.1091848-3-yangyingliang@huawei.com
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Oliver Neukum |
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Signed-off-by: Oliver Neukum <oneukum@suse.com>
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Oliver Neukum |
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---
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drivers/net/wireless/ath/ath10k/pci.c | 3 +++
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Oliver Neukum |
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1 file changed, 3 insertions(+)
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Oliver Neukum |
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Oliver Neukum |
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--- a/drivers/net/wireless/ath/ath10k/pci.c
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Oliver Neukum |
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+++ b/drivers/net/wireless/ath/ath10k/pci.c
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@@ -3630,18 +3630,21 @@ static int ath10k_pci_probe(struct pci_d
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ret = ath10k_pci_chip_reset(ar);
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if (ret) {
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ath10k_err(ar, "failed to reset chip: %d\n", ret);
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Oliver Neukum |
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+ ret = -ENODEV;
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goto err_free_irq;
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Oliver Neukum |
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}
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Oliver Neukum |
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Oliver Neukum |
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chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
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Oliver Neukum |
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if (chip_id == 0xffffffff) {
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ath10k_err(ar, "failed to get chip id\n");
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+ ret = -ENODEV;
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goto err_free_irq;
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Oliver Neukum |
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}
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Oliver Neukum |
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Oliver Neukum |
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if (!ath10k_pci_chip_is_supported(pdev->device, chip_id)) {
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ath10k_err(ar, "device %04x with chip_id %08x isn't supported\n",
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pdev->device, chip_id);
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+ ret = -ENODEV;
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Oliver Neukum |
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goto err_free_irq;
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Oliver Neukum |
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}
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Oliver Neukum |
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