hwrng: cavium - fix NULL but dereferenced coccicheck error

Fix following coccicheck warning:
./drivers/char/hw_random/cavium-rng-vf.c:182:17-20: ERROR:
pdev is NULL but dereferenced.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/cavium-rng-vf.c b/drivers/char/hw_random/cavium-rng-vf.c
index 6f66919..7c55f4c 100644 (file)
--- a/drivers/char/hw_random/cavium-rng-vf.c
+++ b/drivers/char/hw_random/cavium-rng-vf.c
@@ -179,7 +179,7 @@ static int cavium_map_pf_regs(struct cavium_rng *rng)
        pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM,
                              PCI_DEVID_CAVIUM_RNG_PF, NULL);
        if (!pdev) {
-               dev_err(&pdev->dev, "Cannot find RNG PF device\n");
+               pr_err("Cannot find RNG PF device\n");
                return -EIO;
        }