| Message ID | 20241008-mv88e6xxx_leds_fwnode_put-v1-2-cfd7758cd176@gmail.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere, archived |
| Headers | show |
| Series | net, device property: fix led node releases in mv88e6xxx with new macro | expand |
On Tue, Oct 08, 2024 at 06:10:28PM +0200, Javier Carrasco wrote: > The 'led' fwnode_handle within fwnode_for_each_child_node() must be > released upon early exits by means of an explicit call to > fwnode_handle_put(), which in this case is missing. > > Instead of adding the missing call, and considering that this driver was > recently introduced, use a scoped variant of the loop to automatically > decrement the child's refcount when it goes out of scope. > > Note that the _avaialable_ version of the loop has been used, as there > is no apparent reason to walk over unavailable nodes. > > Fixes: 94a2a84f5e9e ("net: dsa: mv88e6xxx: Support LED control") > Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Andrew
On Tue, Oct 08, 2024 at 06:10:28PM +0200, Javier Carrasco wrote: > The 'led' fwnode_handle within fwnode_for_each_child_node() must be > released upon early exits by means of an explicit call to > fwnode_handle_put(), which in this case is missing. > > Instead of adding the missing call, and considering that this driver was > recently introduced, use a scoped variant of the loop to automatically > decrement the child's refcount when it goes out of scope. > > Note that the _avaialable_ version of the loop has been used, as there > is no apparent reason to walk over unavailable nodes. ... > - struct fwnode_handle *led = NULL, *leds = NULL; > + struct fwnode_handle *leds = NULL; Can it be const now?
diff --git a/drivers/net/dsa/mv88e6xxx/leds.c b/drivers/net/dsa/mv88e6xxx/leds.c index 1c88bfaea46b..92a57552beda 100644 --- a/drivers/net/dsa/mv88e6xxx/leds.c +++ b/drivers/net/dsa/mv88e6xxx/leds.c @@ -744,7 +744,7 @@ mv88e6xxx_led1_hw_control_get_device(struct led_classdev *ldev) int mv88e6xxx_port_setup_leds(struct mv88e6xxx_chip *chip, int port) { - struct fwnode_handle *led = NULL, *leds = NULL; + struct fwnode_handle *leds = NULL; struct led_init_data init_data = { }; enum led_default_state state; struct mv88e6xxx_port *p; @@ -770,7 +770,7 @@ int mv88e6xxx_port_setup_leds(struct mv88e6xxx_chip *chip, int port) return 0; } - fwnode_for_each_child_node(leds, led) { + fwnode_for_each_available_child_node_scoped(leds, led) { /* Reg represent the led number of the port, max 2 * LEDs can be connected to each port, in some designs * only one LED is connected.
The 'led' fwnode_handle within fwnode_for_each_child_node() must be released upon early exits by means of an explicit call to fwnode_handle_put(), which in this case is missing. Instead of adding the missing call, and considering that this driver was recently introduced, use a scoped variant of the loop to automatically decrement the child's refcount when it goes out of scope. Note that the _avaialable_ version of the loop has been used, as there is no apparent reason to walk over unavailable nodes. Fixes: 94a2a84f5e9e ("net: dsa: mv88e6xxx: Support LED control") Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> --- drivers/net/dsa/mv88e6xxx/leds.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)