On Wed, Oct 13, 2021 at 06:58:08PM +0000, Corentin Labbe wrote:

+static int load_codec(struct zoran *zr, u16 codecid)
+{
+	switch (codecid) {
+	case CODEC_TYPE_ZR36060:
+#ifdef CONFIG_VIDEO_ZORAN_ZR36060
+		return zr36060_init_module();
+#else
+		pci_err(zr->pci_dev, "ZR36060 support is not enabled\n");
+		return -EINVAL;
+#endif
+		break;
+	case CODEC_TYPE_ZR36050:
+#ifdef CONFIG_VIDEO_ZORAN_DC30
+		return zr36050_init_module();
+#else
+		pci_err(zr->pci_dev, "ZR36050 support is not enabled\n");
+		return -EINVAL;
+#endif
+		break;
+	case CODEC_TYPE_ZR36016:
+#ifdef CONFIG_VIDEO_ZORAN_DC30
+		return zr36016_init_module();
+#else
+		pci_err(zr->pci_dev, "ZR36016 support is not enabled\n");
+		return -EINVAL;
+#endif

The caller already prints an error message.  Can you look through the
dmesg and make sure were not printing a bunch of duplicate stuff?  Also
if load_codec() fails, the probe function still does
zoran_setup_videocodec() on the failed codec.

These would be better in a .h file.

#ifdef CONFIG_VIDEO_ZORAN_ZR36060
int zr36060_init_module(void);
#else
int zr36060_init_module(void) { return -EINVAL; }
#endif

regards,
dan carpenter