media: dvb-frontends: fix leak of memory fw

Link: https://lore.kernel.org/linux-media/20220410061925.4107-1-chinayanlei2002@163.comSigned-off-by: Yan Lei <yan_lei@dahuatech.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/dvb-frontends/bcm3510.c

@@ -649,6 +649,7 @@ static int bcm3510_download_firmware(struct dvb_frontend* fe)
 		deb_info("firmware chunk, addr: 0x%04x, len: 0x%04x, total length: 0x%04zx\n",addr,len,fw->size);
 		if ((ret = bcm3510_write_ram(st,addr,&b[i+4],len)) < 0) {
 			err("firmware download failed: %d\n",ret);
+			release_firmware(fw);
 			return ret;
 		}
 		i += 4 + len;