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ACPI: scan: Fix a memory leak in an error handling path 

[ 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>
This commit is contained in:
Christophe JAILLET 2021-05-08 09:23:09 +02:00 committed by Greg Kroah-Hartman
parent 1648505d13
commit dafd4c0b5e
1 changed files with 1 additions and 0 deletions
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drivers/acpi/scan.c
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@ -706,6 +706,7 @@ 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;
}