[PATCH] iwlegacy: Add null pointer check to il_leds_init

[Kunwu Chan]

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.

Cc: Kunwu Chan <kunwu.chan@xxxxxxxxxxx>
Signed-off-by: Kunwu Chan <chentao@xxxxxxxxxx>
---
 drivers/net/wireless/intel/iwlegacy/common.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c
index 054fef680aba..17570d62c896 100644
--- a/drivers/net/wireless/intel/iwlegacy/common.c
+++ b/drivers/net/wireless/intel/iwlegacy/common.c
@@ -541,6 +541,9 @@ il_leds_init(struct il_priv *il)
 
 	il->led.name =
 	    kasprintf(GFP_KERNEL, "%s-led", wiphy_name(il->hw->wiphy));
+	if (!il->led.name)
+		return;
+
 	il->led.brightness_set = il_led_brightness_set;
 	il->led.blink_set = il_led_blink_set;
 	il->led.max_brightness = 1;
-- 
2.39.2