[PATCH -next v2] [media] go7007: fix invalid use of sizeof in go7007_usb_i2c_master_xfer()

Wei Yongjun weiyj.lk at gmail.com
Tue Mar 26 08:45:11 UTC 2013


From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>

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 at trendmicro.com.cn>
---
 drivers/staging/media/go7007/go7007-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 0823506..d455c0b 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1035,7 +1035,7 @@ 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;





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