linux-kernel - [PATCH] ide: pci: Fix memleak in ide_pci_init

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Date:   Wed, 26 Aug 2020 17:17:33 +0800
From:   Dinghao Liu <dinghao.liu@....edu.cn>
To:     dinghao.liu@....edu.cn, kjlu@....edu
Cc:     "David S. Miller" <davem@...emloft.net>, linux-ide@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ide: pci: Fix memleak in ide_pci_init_two

When do_ide_setup_pci_device() fails, host should be
freed just like when ide_host_register() fails.

Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
---
 drivers/ide/setup-pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index fdc8e813170c..e6cba7e24c39 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -585,8 +585,10 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 		 * FIXME: Mom, mom, they stole me the helper function to undo
 		 * do_ide_setup_pci_device() on the first device!
 		 */
-		if (ret < 0)
+		if (ret < 0) {
+			ide_host_free(host);
 			goto out_free_bars;
+		}
 
 		/* fixup IRQ */
 		if (ide_pci_is_in_compatibility_mode(pdev[i])) {
-- 
2.17.1