[PATCH] backlight: led_bl: Use devm_kcalloc() for array space allocation

[Qianfeng Rong]

Replace calls of devm_kzalloc() with devm_kcalloc() in led_bl_get_leds()
and led_bl_parse_levels() for safer memory allocation with built-in
overflow protection.

Signed-off-by: Qianfeng Rong <rongqianfeng@xxxxxxxx>
---
 drivers/video/backlight/led_bl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/led_bl.c b/drivers/video/backlight/led_bl.c
index d2db157b2c29..dd03d91a6e50 100644
--- a/drivers/video/backlight/led_bl.c
+++ b/drivers/video/backlight/led_bl.c
@@ -89,7 +89,7 @@ static int led_bl_get_leds(struct device *dev,
 		return -EINVAL;
 	}
 
-	leds = devm_kzalloc(dev, sizeof(struct led_classdev *) * nb_leds,
+	leds = devm_kcalloc(dev, nb_leds, sizeof(struct led_classdev *),
 			    GFP_KERNEL);
 	if (!leds)
 		return -ENOMEM;
@@ -137,7 +137,7 @@ static int led_bl_parse_levels(struct device *dev,
 		unsigned int db;
 		u32 *levels = NULL;
 
-		levels = devm_kzalloc(dev, sizeof(u32) * num_levels,
+		levels = devm_kcalloc(dev, num_levels, sizeof(u32),
 				      GFP_KERNEL);
 		if (!levels)
 			return -ENOMEM;
-- 
2.34.1