diff mbox series

[RESEND] mt76: mt7915: check devm_kasprintf() returned value

Message ID 20240903014955.4145423-1-make24@iscas.ac.cn (mailing list archive)
State Accepted
Delegated to: Felix Fietkau
Headers show
Series [RESEND] mt76: mt7915: check devm_kasprintf() returned value | expand

Commit Message

Ma Ke Sept. 3, 2024, 1:49 a.m. UTC
devm_kasprintf() can return a NULL pointer on failure but this returned
value is not checked. Fix this lack and check the returned value.

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 6ae39b7c7ed4 ("wifi: mt76: mt7921: Support temp sensor")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
---
 drivers/net/wireless/mediatek/mt76/mt7915/init.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Matthias Brugger Sept. 4, 2024, 8:59 a.m. UTC | #1
On 03/09/2024 03:49, Ma Ke wrote:
> devm_kasprintf() can return a NULL pointer on failure but this returned
> value is not checked. Fix this lack and check the returned value.
> 
> Found by code review.
> 
> Cc: stable@vger.kernel.org
> Fixes: 6ae39b7c7ed4 ("wifi: mt76: mt7921: Support temp sensor")
> Signed-off-by: Ma Ke <make24@iscas.ac.cn>

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>

> ---
>   drivers/net/wireless/mediatek/mt76/mt7915/init.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
> index a978f434dc5e..7bc3b4cd3592 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
> @@ -194,6 +194,8 @@ static int mt7915_thermal_init(struct mt7915_phy *phy)
>   
>   	name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7915_%s",
>   			      wiphy_name(wiphy));
> +	if (!name)
> +		return -ENOMEM;
>   
>   	cdev = thermal_cooling_device_register(name, phy, &mt7915_thermal_ops);
>   	if (!IS_ERR(cdev)) {
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index a978f434dc5e..7bc3b4cd3592 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -194,6 +194,8 @@  static int mt7915_thermal_init(struct mt7915_phy *phy)
 
 	name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7915_%s",
 			      wiphy_name(wiphy));
+	if (!name)
+		return -ENOMEM;
 
 	cdev = thermal_cooling_device_register(name, phy, &mt7915_thermal_ops);
 	if (!IS_ERR(cdev)) {