Re: [PATCH] staging: rtl8192e: check return value of dev_skb_alloc

From: Dan Carpenter
Date: Thu Jun 19 2014 - 01:29:19 EST


On Wed, Jun 18, 2014 at 10:24:41PM -0400, Nicholas Krause wrote:
> Checks if dev_skb_alloc returns Null in function, fw_download_code.
> If the return value of dev_skb_alloc is NULL return false and exit
> this function.
> Signed-off-by: Nicholas Krause <xerofoify@xxxxxxxxx>
> ---
> drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
> index 1a95d1f..38ae236 100644
> --- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
> +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
> @@ -62,6 +62,8 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
>
> skb = dev_alloc_skb(frag_length + 4);
> memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
> + if (!skb)
> + return !rt_status;

What's this !rt_status? Just return false.

regards,
dan carpenter

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