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From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: linus.walleij@linaro.org, lorenzo.pieralisi@arm.com,
	amurray@thegoodpenguin.co.uk, bhelgaas@google.com
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] PCI: v3-semi: Fix a memory leak in some error handling paths in 'v3_pci_probe()'
Date: Sat, 18 Apr 2020 10:16:37 +0200	[thread overview]
Message-ID: <20200418081637.1585-1-christophe.jaillet@wanadoo.fr> (raw)

IF we fails somewhere in 'v3_pci_probe()', we need to free 'host'.
Use the managed version of 'pci_alloc_host_bridge()' to do that easily.
The use of managed resources is already widely used in this driver.

Fixes: 68a15eb7bd0c ("PCI: v3-semi: Add V3 Semiconductor PCI host driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Fixes could be older than this commit, but this is as far as git can go.

There is also a 'clk_prepare_enable()' which looks un-ballanced. I don't
know if it can be an issue.

Compile tested only.
---
 drivers/pci/controller/pci-v3-semi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-v3-semi.c b/drivers/pci/controller/pci-v3-semi.c
index bd05221f5a22..ddcb4571a79b 100644
--- a/drivers/pci/controller/pci-v3-semi.c
+++ b/drivers/pci/controller/pci-v3-semi.c
@@ -720,7 +720,7 @@ static int v3_pci_probe(struct platform_device *pdev)
 	int irq;
 	int ret;
 
-	host = pci_alloc_host_bridge(sizeof(*v3));
+	host = devm_pci_alloc_host_bridge(dev, sizeof(*v3));
 	if (!host)
 		return -ENOMEM;
 
-- 
2.20.1


             reply	other threads:[~2020-04-18  8:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-18  8:16 Christophe JAILLET [this message]
2020-04-19  9:51 ` Linus Walleij
2020-05-05 11:04 ` Lorenzo Pieralisi

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