[PATCH net-XXX] net: dsa: qca8k: uninitialized variable in hw_control_get()

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The caller, netdev_trig_activate(), passes an uninitialized value for
*rules.  This function sets bits to one but it doesn't zero out any
bits so there is a potential for uninitialized data to be used.
Zero out the *rules at the start of the function.

Fixes: e0256648c831 ("net: dsa: qca8k: implement hw_control ops")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/net/dsa/qca/qca8k-leds.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/dsa/qca/qca8k-leds.c b/drivers/net/dsa/qca/qca8k-leds.c
index 6f02029b454b..772478156e4e 100644
--- a/drivers/net/dsa/qca/qca8k-leds.c
+++ b/drivers/net/dsa/qca/qca8k-leds.c
@@ -304,6 +304,8 @@ qca8k_cled_hw_control_get(struct led_classdev *ldev, unsigned long *rules)
 	u32 val;
 	int ret;
 
+	*rules = 0;
+
 	/* With hw control not active return err */
 	if (!qca8k_cled_hw_control_status(ldev))
 		return -EINVAL;
-- 
2.39.2




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