[PATCH AUTOSEL 4.4 64/71] iwlwifi: check kasprintf() return value

Sasha Levin
2019-12-10T22:34:45Z

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 5974fbb5e10b018fdbe3c3b81cb4cc54e1105ab9 ]

kasprintf() can fail, we should check the return value.

Fixes: 5ed540aecc2a ("iwlwifi: use mac80211 throughput trigger")
Fixes: 8ca151b568b6 ("iwlwifi: add the MVM driver")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/iwlwifi/dvm/led.c | 3 +++
drivers/net/wireless/iwlwifi/mvm/led.c | 3 +++
2 files changed, 6 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/dvm/led.c b/drivers/net/wireless/iwlwifi/dvm/led.c
index ca4d6692cc4eb..47e5fa70483d1 100644
--- a/drivers/net/wireless/iwlwifi/dvm/led.c
+++ b/drivers/net/wireless/iwlwifi/dvm/led.c
@@ -184,6 +184,9 @@ void iwl_leds_init(struct iwl_priv *priv)

priv->led.name = kasprintf(GFP_KERNEL, "%s-led",
wiphy_name(priv->hw->wiphy));
+ if (!priv->led.name)
+ return;
+
priv->led.brightness_set = iwl_led_brightness_set;
priv->led.blink_set = iwl_led_blink_set;
priv->led.max_brightness = 1;
diff --git a/drivers/net/wireless/iwlwifi/mvm/led.c b/drivers/net/wireless/iwlwifi/mvm/led.c
index e3b3cf4dbd77a..948be43e4d266 100644
--- a/drivers/net/wireless/iwlwifi/mvm/led.c
+++ b/drivers/net/wireless/iwlwifi/mvm/led.c
@@ -109,6 +109,9 @@ int iwl_mvm_leds_init(struct iwl_mvm *mvm)

mvm->led.name = kasprintf(GFP_KERNEL, "%s-led",
wiphy_name(mvm->hw->wiphy));
+ if (!mvm->led.name)
+ return -ENOMEM;
+
mvm->led.brightness_set = iwl_led_brightness_set;
mvm->led.max_brightness = 1;

--
2.20.1