[media] coda: initialize hardware on pm runtime resume only if firmware available

If no firmware was found and the coda module is unloaded, coda_runtime_resume
will be called without an allocated code buffer. Do not call coda_hw_init in
this case.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/coda.c

@@ -3903,7 +3903,7 @@ static int coda_runtime_resume(struct device *dev)
 	struct coda_dev *cdev = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (dev->pm_domain) {
+	if (dev->pm_domain && cdev->codebuf.vaddr) {
 		ret = coda_hw_init(cdev);
 		if (ret)
 			v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");