[media] go7007: fix invalid use of sizeof in go7007_usb_i2c_master_xfer()

sizeof() when applied to a pointer typed expression gives the
size of the pointer, not that of the pointed data.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index a734ead..50066e0 100644 (file)
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1037,7 +1037,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
                                                buf, buf_len, 0) < 0)
                        goto i2c_done;
                if (msgs[i].flags & I2C_M_RD) {
-                       memset(buf, 0, sizeof(buf));
+                       memset(buf, 0, msgs[i].len + 1);
                        if (go7007_usb_vendor_request(go, 0x25, 0, 0, buf,
                                                msgs[i].len + 1, 1) < 0)
                                goto i2c_done;