media: gspca_pac7302: Add new usb-id for Genius i-Look 317

[firefly-linux-kernel-4.4.55.git] / drivers / media / tuners / tuner-xc2028.c

diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
index 878d2c4d9e8ef545d7f76bbda04f5d96ecf7fdbd..9771cd83c06e2a0d0c49666a36402734a1f493ff 100644 (file)
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -24,6 +24,9 @@
 #include <linux/dvb/frontend.h>
 #include "dvb_frontend.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  80
+
 /* Registers (Write-only) */
 #define XREG_INIT         0x00
 #define XREG_RF_FREQ      0x02
@@ -547,7 +550,10 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type,
 {
        struct xc2028_data *priv = fe->tuner_priv;
        int                pos, rc;
-       unsigned char      *p, *endp, buf[priv->ctrl.max_len];
+       unsigned char      *p, *endp, buf[MAX_XFER_SIZE];
+
+       if (priv->ctrl.max_len > sizeof(buf))
+               priv->ctrl.max_len = sizeof(buf);
 
        tuner_dbg("%s called\n", __func__);