netdev - [PATCH wireless] adm8211: fix error return code in adm8211

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Date:   Fri, 4 Dec 2020 16:47:17 +0800
From:   Zhang Changzhong <zhangchangzhong@...wei.com>
To:     Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "John W. Linville" <linville@...driver.com>,
        Michael Wu <flamingice@...rmilk.net>
CC:     Zhang Changzhong <zhangchangzhong@...wei.com>,
        <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH wireless] adm8211: fix error return code in adm8211_probe()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: cc0b88cf5ecf ("[PATCH] Add adm8211 802.11b wireless driver")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>
---
 drivers/net/wireless/admtek/adm8211.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/admtek/adm8211.c b/drivers/net/wireless/admtek/adm8211.c
index 5cf2045..c41e725 100644
--- a/drivers/net/wireless/admtek/adm8211.c
+++ b/drivers/net/wireless/admtek/adm8211.c
@@ -1796,6 +1796,7 @@ static int adm8211_probe(struct pci_dev *pdev,
 	if (io_len < 256 || mem_len < 1024) {
 		printk(KERN_ERR "%s (adm8211): Too short PCI resources\n",
 		       pci_name(pdev));
+		err = -ENOMEM;
 		goto err_disable_pdev;
 	}
 
@@ -1805,6 +1806,7 @@ static int adm8211_probe(struct pci_dev *pdev,
 	if (reg != ADM8211_SIG1 && reg != ADM8211_SIG2) {
 		printk(KERN_ERR "%s (adm8211): Invalid signature (0x%x)\n",
 		       pci_name(pdev), reg);
+		err = -EINVAL;
 		goto err_disable_pdev;
 	}
 
@@ -1815,8 +1817,8 @@ static int adm8211_probe(struct pci_dev *pdev,
 		return err; /* someone else grabbed it? don't disable it */
 	}
 
-	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)) ||
-	    dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (err) {
 		printk(KERN_ERR "%s (adm8211): No suitable DMA available\n",
 		       pci_name(pdev));
 		goto err_free_reg;
-- 
2.9.5