diff mbox series

[4.14,284/323] ACPI: scan: Fix a memory leak in an error handling path

Message ID 20210520092129.958784547@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman May 20, 2021, 9:22 a.m. UTC 
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 0c8bd174f0fc131bc9dfab35cd8784f59045da87 ]

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>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/scan.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 57a213466721..11f07f525b13 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -704,6 +704,7 @@  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;
 		}