wireless/libertas/if_cs.c: fix memory leaks

The leak in if_cs_prog_helper() is obvious.

It looks a bit as if not freeing "fw" in if_cs_prog_real() was done
intentionally, but I'm not seeing why it shouldn't be freed.
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/if_cs.c

@@ -595,7 +595,7 @@ static int if_cs_prog_helper(struct if_cs_card *card)
 		if (ret < 0) {
 			lbs_pr_err("can't download helper at 0x%x, ret %d\n",
 				sent, ret);
-			goto done;
+			goto err_release;
 		}
 
 		if (count == 0)
@@ -604,9 +604,8 @@ static int if_cs_prog_helper(struct if_cs_card *card)
 		sent += count;
 	}
 
+err_release:
 	release_firmware(fw);
-	ret = 0;
-
 done:
 	lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
 	return ret;
@@ -676,14 +675,8 @@ static int if_cs_prog_real(struct if_cs_card *card)
 	}
 
 	ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
-	if (ret < 0) {
+	if (ret < 0)
 		lbs_pr_err("firmware download failed\n");
-		goto err_release;
-	}
-
-	ret = 0;
-	goto done;
-
 
 err_release:
 	release_firmware(fw);