[PATCH gspca_jf tree] gspca zc3xx: signal when unknown packet received

[Németh Márton]

Signed-off-by: Márton Németh <nm...@freemail.hu>
---
diff -r 95d3956ea3e5 linux/drivers/media/video/gspca/zc3xx.c
--- a/linux/drivers/media/video/gspca/zc3xx.c   Fri Jan 29 15:05:25 2010 +0100
+++ b/linux/drivers/media/video/gspca/zc3xx.c   Fri Jan 29 21:01:52 2010 +0100
@@ -7213,14 +7213,17 @@
                        u8 *data,               /* interrupt packet data */
                        int len)                /* interrput packet length */
 {
+       int ret = -EINVAL;
+
        if (len == 8 && data[4] == 1) {
                input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
                input_sync(gspca_dev->input_dev);
                input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
                input_sync(gspca_dev->input_dev);
+               ret = 0;
        }

-       return 0;
+       return ret;
 }
 #endif

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