RE: qed: Add RoCE ll2 & GSI support

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+Yuval

Thank you Dan. We'll take care of this as well.

> -----Original Message-----
> From: Dan Carpenter [mailto:dan.carpenter@xxxxxxxxxx]
> Sent: Tuesday, October 11, 2016 10:33 AM
> To: Amrani, Ram <Ram.Amrani@xxxxxxxxxx>
> Cc: kernel-janitors@xxxxxxxxxxxxxxx
> Subject: re: qed: Add RoCE ll2 & GSI support
> 
> Hello Ram Amrani,
> 
> This is a semi-automatic email about new static checker warnings.
> 
> The patch abd49676c707: "qed: Add RoCE ll2 & GSI support" from Oct 1, 2016,
> leads to the following Smatch complaint:
> 
> drivers/net/ethernet/qlogic/qed/qed_roce.c:2812 qed_roce_ll2_stop()
> 	 warn: variable dereferenced before check 'cdev' (see line 2808)
> 
> drivers/net/ethernet/qlogic/qed/qed_roce.c
>   2807	{
>   2808		struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
>   2809		struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
>                                                      ^^^^^^^^^ Deref.
> 
>   2810		int rc;
>   2811
>   2812		if (!cdev) {
>                     ^^^^^
> Checked too late.
> 
>   2813			DP_ERR(cdev, "qed roce ll2 stop: invalid cdev\n");
>   2814			return -EINVAL;
> 
> regards,
> dan carpenter
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