From 4d8729a139782d4facc98b7bd7d87c7d10c128b0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 26 Jul 2012 15:59:51 +0800 Subject: [PATCH] LEDS: memory leak in blinkm_led_common_set() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This can return without freeing the bl_work struct. Also there was no check for allocation failure. Signed-off-by: Dan Carpenter Acked-by: Jan-Simon Möller Signed-off-by: Bryan Wu --- drivers/leds/leds-blinkm.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c index 5a9df43e5302..ae6ad6331f23 100644 --- a/drivers/leds/leds-blinkm.c +++ b/drivers/leds/leds-blinkm.c @@ -468,8 +468,7 @@ static int blinkm_led_common_set(struct led_classdev *led_cdev, /* led_brightness is 0, 127 or 255 - we just use it here as-is */ struct blinkm_led *led = cdev_to_blmled(led_cdev); struct blinkm_data *data = i2c_get_clientdata(led->i2c_client); - struct blinkm_work *bl_work = kzalloc(sizeof(struct blinkm_work), - GFP_ATOMIC); + struct blinkm_work *bl_work; switch (color) { case RED: @@ -511,6 +510,10 @@ static int blinkm_led_common_set(struct led_classdev *led_cdev, return -EINVAL; } + bl_work = kzalloc(sizeof(*bl_work), GFP_ATOMIC); + if (!bl_work) + return -ENOMEM; + atomic_inc(&led->active); dev_dbg(&led->i2c_client->dev, "#TO_SCHED# next_red = %d, next_green = %d," -- 2.20.1