| Message ID | 63bf4e87eb42fa3fff2cd87eb605ebcc01f4b2f7.1620458525.git.christophe.jaillet@wanadoo.fr (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Headers | show |
| Series | ACPI: scan: Fix a memory leak in an error handling path | expand |
On Sat, May 08, 2021 at 09:23:09AM +0200, Christophe JAILLET wrote: > If 'acpi_device_set_name()' fails, we must free > 'acpi_device_bus_id->bus_id' or there is a (potential) memory leak. Good catch! I guess I have lost it somewhere in the middle of developing the mentioned fix. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Thanks! > 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 >
On Mon, May 10, 2021 at 3:17 PM Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote: > > On Sat, May 08, 2021 at 09:23:09AM +0200, Christophe JAILLET wrote: > > If 'acpi_device_set_name()' fails, we must free > > 'acpi_device_bus_id->bus_id' or there is a (potential) memory leak. > > Good catch! > I guess I have lost it somewhere in the middle of developing the mentioned fix. > > Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > > Thanks! > > > 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; > > } > > -- Applied as 5.13-rc material, thanks!
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; }
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(+)