linux-kernel - [PATCH] mmc: cavium: Add missed pci_release

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Date:   Fri,  6 Dec 2019 15:54:08 +0800
From:   Chuhong Yuan <hslester96@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Jan Glauber <jglauber@...ium.com>,
        David Daney <david.daney@...ium.com>,
        "Steven J . Hill" <Steven.Hill@...ium.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chuhong Yuan <hslester96@...il.com>
Subject: [PATCH] mmc: cavium: Add missed pci_release_regions

The driver forgets to call pci_release_regions() in probe failure
and remove.
Add the missed calls to fix it.

Signed-off-by: Chuhong Yuan <hslester96@...il.com>
---
 drivers/mmc/host/cavium-thunderx.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/cavium-thunderx.c b/drivers/mmc/host/cavium-thunderx.c
index eee08d81b242..76013bbbcff3 100644
--- a/drivers/mmc/host/cavium-thunderx.c
+++ b/drivers/mmc/host/cavium-thunderx.c
@@ -76,8 +76,10 @@ static int thunder_mmc_probe(struct pci_dev *pdev,
 		return ret;
 
 	host->base = pcim_iomap(pdev, 0, pci_resource_len(pdev, 0));
-	if (!host->base)
-		return -EINVAL;
+	if (!host->base) {
+		ret = -EINVAL;
+		goto error;
+	}
 
 	/* On ThunderX these are identical */
 	host->dma_base = host->base;
@@ -86,12 +88,14 @@ static int thunder_mmc_probe(struct pci_dev *pdev,
 	host->reg_off_dma = 0x160;
 
 	host->clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(host->clk))
-		return PTR_ERR(host->clk);
+	if (IS_ERR(host->clk)) {
+		ret = PTR_ERR(host->clk);
+		goto error;
+	}
 
 	ret = clk_prepare_enable(host->clk);
 	if (ret)
-		return ret;
+		goto error;
 	host->sys_freq = clk_get_rate(host->clk);
 
 	spin_lock_init(&host->irq_handler_lock);
@@ -157,6 +161,7 @@ static int thunder_mmc_probe(struct pci_dev *pdev,
 		}
 	}
 	clk_disable_unprepare(host->clk);
+	pci_release_regions(pdev);
 	return ret;
 }
 
@@ -175,6 +180,7 @@ static void thunder_mmc_remove(struct pci_dev *pdev)
 	writeq(dma_cfg, host->dma_base + MIO_EMM_DMA_CFG(host));
 
 	clk_disable_unprepare(host->clk);
+	pci_release_regions(pdev);
 }
 
 static const struct pci_device_id thunder_mmc_id_table[] = {
-- 
2.24.0