staging: vt6656: Fix possible leak in vnt_download_firmware()

When failing to allocate buffer memory, function vnt_download_firmware() goes
through the wrong exit path and fails to release the already requested
firmware. Thus use the correct cleanup. Detected by Coverity CID 1269128.

Signed-off-by: Christian Engelmayer <[e-mail]>
Reviewed-by: Martin Kepplinger <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/vt6656/firmware.c

···
 
 	buffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
 	if (!buffer)
-		goto out;
+		goto free_fw;
 
 	for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
 		length = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);