I/OAT: fix null device in call to dev_err()

We can't use the device in a dev_err() after a kzalloc failure or after the
kfree, so simplify it to the pdev that was originally passed in.

Cc: Eric Sesterhenn <[e-mail]>
Signed-off-by: Shannon Nelson <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/dma/ioat_dma.c

···
 err_dma_pool:
 	kfree(device);
 err_kzalloc:
-	dev_err(&device->pdev->dev,
+	dev_err(&pdev->dev,
 		"Intel(R) I/OAT DMA Engine initialization failed\n");
 	return NULL;
 }