linux-kernel - [PATCH] memstick: r592: Fix error return in r592

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Message-ID: <20201125014718.153563-1-jingxiangfeng@huawei.com>
Date:   Wed, 25 Nov 2020 09:47:18 +0800
From:   Jing Xiangfeng <jingxiangfeng@...wei.com>
To:     <maximlevitsky@...il.com>, <oakad@...oo.com>,
        <ulf.hansson@...aro.org>, <akpm@...ux-foundation.org>
CC:     <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <jingxiangfeng@...wei.com>
Subject: [PATCH]  memstick: r592: Fix error return in r592_probe()

Fix to return a error code from the error handling case instead of 0.

Fixes: 926341250102 ("memstick: add driver for Ricoh R5C592 card reader")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@...wei.com>
---
 drivers/memstick/host/r592.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index dd3a1f3dcc19..d2ef46337191 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -759,8 +759,10 @@ static int r592_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto error3;
 
 	dev->mmio = pci_ioremap_bar(pdev, 0);
-	if (!dev->mmio)
+	if (!dev->mmio) {
+		error = -ENOMEM;
 		goto error4;
+	}
 
 	dev->irq = pdev->irq;
 	spin_lock_init(&dev->irq_lock);
@@ -786,12 +788,14 @@ static int r592_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		&dev->dummy_dma_page_physical_address, GFP_KERNEL);
 	r592_stop_dma(dev , 0);
 
-	if (request_irq(dev->irq, &r592_irq, IRQF_SHARED,
-			  DRV_NAME, dev))
+	error = request_irq(dev->irq, &r592_irq, IRQF_SHARED,
+			  DRV_NAME, dev);
+	if (error)
 		goto error6;
 
 	r592_update_card_detect(dev);
-	if (memstick_add_host(host))
+	error = memstick_add_host(host);
+	if (error)
 		goto error7;
 
 	message("driver successfully loaded");
-- 
2.22.0