[PATCH] crypto: amlogic - Add check for devm_kcalloc

[PATCH] crypto: amlogic - Add check for devm_kcalloc

[Jiasheng Jiang]

As the devm_kcalloc may return NULL pointer,
it should be better to add check for the return
value, as same as the others.

Fixes: 48fe583fe541 ("crypto: amlogic - Add crypto accelerator for amlogic GXL")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
 drivers/crypto/amlogic/amlogic-gxl-core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c
index 6e7ae896717c..b243d6382664 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-core.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
@@ -238,6 +238,9 @@ static int meson_crypto_probe(struct platform_device *pdev)
 	}
 
 	mc->irqs = devm_kcalloc(mc->dev, MAXFLOW, sizeof(int), GFP_KERNEL);
+	if (!mc->irqs)
+		return -ENOMEM;
+
 	for (i = 0; i < MAXFLOW; i++) {
 		mc->irqs[i] = platform_get_irq(pdev, i);
 		if (mc->irqs[i] < 0)
-- 
2.25.1


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Re: [PATCH] crypto: amlogic - Add check for devm_kcalloc

[Neil Armstrong]

On 22/11/2022 07:22, Jiasheng Jiang wrote:
> As the devm_kcalloc may return NULL pointer,
> it should be better to add check for the return
> value, as same as the others.
> 
> Fixes: 48fe583fe541 ("crypto: amlogic - Add crypto accelerator for amlogic GXL")
> Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
> ---
>   drivers/crypto/amlogic/amlogic-gxl-core.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c
> index 6e7ae896717c..b243d6382664 100644
> --- a/drivers/crypto/amlogic/amlogic-gxl-core.c
> +++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
> @@ -238,6 +238,9 @@ static int meson_crypto_probe(struct platform_device *pdev)
>   	}
>   
>   	mc->irqs = devm_kcalloc(mc->dev, MAXFLOW, sizeof(int), GFP_KERNEL);
> +	if (!mc->irqs)
> +		return -ENOMEM;
> +
>   	for (i = 0; i < MAXFLOW; i++) {
>   		mc->irqs[i] = platform_get_irq(pdev, i);
>   		if (mc->irqs[i] < 0)


Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

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