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From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: rjw@rjwysocki.net, lenb@kernel.org, andriy.shevchenko@linux.intel.com
Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] ACPI: scan: Fix a memory leak in an error handling path
Date: Sat,  8 May 2021 09:23:09 +0200	[thread overview]
Message-ID: <63bf4e87eb42fa3fff2cd87eb605ebcc01f4b2f7.1620458525.git.christophe.jaillet@wanadoo.fr> (raw)

If 'acpi_device_set_name()' fails, we must free
'acpi_device_bus_id->bus_id' or there is a (potential) memory leak.

Fixes: eb50aaf960e3 ("ACPI: scan: Use unique number for instance_no")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/acpi/scan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a22778e880c2..651a431e2bbf 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -700,6 +700,7 @@ int acpi_device_add(struct acpi_device *device,
 
 		result = acpi_device_set_name(device, acpi_device_bus_id);
 		if (result) {
+			kfree_const(acpi_device_bus_id->bus_id);
 			kfree(acpi_device_bus_id);
 			goto err_unlock;
 		}
-- 
2.30.2


             reply	other threads:[~2021-05-08  7:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-08  7:23 Christophe JAILLET [this message]
2021-05-08 14:50 ` Edmundo Carmona Antoranz
2021-05-08 18:47   ` Christophe JAILLET
2021-05-10  5:39   ` Dan Carpenter
     [not found]     ` <CAOc6etbVZkANHVVmP5rss-nQqSYNiSFRXrg_nVUBV-719xKqJw@mail.gmail.com>
2021-05-10 13:55       ` Dan Carpenter
2021-05-10 12:18 ` Andy Shevchenko
2021-05-10 17:04   ` Rafael J. Wysocki

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