| Message ID | 20250407095551.32127-1-hanchunchao@inspur.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | wifi: mt76: mt7996: Add NULL check in mt7996_thermal_init | expand |
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c index 6b660424aedc..5af52bd1f1f1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c @@ -217,6 +217,9 @@ static int mt7996_thermal_init(struct mt7996_phy *phy) name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7996_%s.%d", wiphy_name(wiphy), phy->mt76->band_idx); + if (!name) + return -ENOMEM; + snprintf(cname, sizeof(cname), "cooling_device%d", phy->mt76->band_idx); cdev = thermal_cooling_device_register(name, phy, &mt7996_thermal_ops);
devm_kasprintf() can return a NULL pointer on failure,but this returned value in mt7996_thermal_init() is not checked. Add NULL check in mt7996_thermal_init(), to handle kernel NULL pointer dereference error. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Charles Han <hanchunchao@inspur.com> --- drivers/net/wireless/mediatek/mt76/mt7996/init.c | 3 +++ 1 file changed, 3 insertions(+)