crypto: cavium - Add the Virtual Function driver for CPT

Hello George Cherian,

This is a semi-automatic email about new static checker warnings.

The patch c694b233295b: "crypto: cavium - Add the Virtual Function driver for CPT" from Feb 7, 2017, leads to the following Smatch complaint:

drivers/crypto/cavium/cpt/cptvf_main.c:899 cptvf_remove()
error: we previously assumed 'cptvf' could be null (see line 895)

drivers/crypto/cavium/cpt/cptvf_main.c
894
895 if (!cptvf)

                     ^^^^^

Check for NULL.

896 dev_err(&pdev->dev, "Invalid CPT-VF device\n");
897
898 /* Convey DOWN to PF */

   899		if (cptvf_send_vf_down(cptvf)) {
                                       ^^^^^

Oops inside function.

900 dev_err(&pdev->dev, "PF not responding to DOWN msg");
901 } else {

regards,
dan carpenter