linux-kernel - [PATCH] staging: rts5208: fix memleaks on error handling paths in probe

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Date:   Tue, 23 Jun 2020 17:12:30 +0300
From:   Evgeny Novikov <novikov@...ras.ru>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Evgeny Novikov <novikov@...ras.ru>,
        "Frank A. Cancio Bello" <frank@...eralsoftwareinc.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Arnd Bergmann <arnd@...db.de>,
        Chuhong Yuan <hslester96@...il.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org
Subject: [PATCH] staging: rts5208: fix memleaks on error handling paths in probe

rtsx_probe() allocates host, but does not free it on error handling
paths. The patch adds missed scsi_host_put().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@...ras.ru>
---
 drivers/staging/rts5208/rtsx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c
index be0053c795b7..937f4e732a75 100644
--- a/drivers/staging/rts5208/rtsx.c
+++ b/drivers/staging/rts5208/rtsx.c
@@ -972,6 +972,7 @@ static int rtsx_probe(struct pci_dev *pci,
 	kfree(dev->chip);
 chip_alloc_fail:
 	dev_err(&pci->dev, "%s failed\n", __func__);
+	scsi_host_put(host);
 scsi_host_alloc_fail:
 	pci_release_regions(pci);
 	return err;
-- 
2.16.4