linux-kernel - [PATCH 3.16 51/99] staging: wlan-ng: ensure error return is actually returned

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Message-ID: <lsq.1589984008.555912062@decadent.org.uk>
Date:   Wed, 20 May 2020 15:14:19 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Colin Ian King" <colin.king@...onical.com>
Subject: [PATCH 3.16 51/99] staging: wlan-ng: ensure error return is
 actually returned

3.16.84-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Colin Ian King <colin.king@...onical.com>

commit 4cc41cbce536876678b35e03c4a8a7bb72c78fa9 upstream.

Currently when the call to prism2sta_ifst fails a netdev_err error
is reported, error return variable result is set to -1 but the
function always returns 0 for success.  Fix this by returning
the error value in variable result rather than 0.

Addresses-Coverity: ("Unused value")
Fixes: 00b3ed168508 ("Staging: add wlan-ng prism2 usb driver")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Link: https://lore.kernel.org/r/20200114181604.390235-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/staging/wlan-ng/prism2mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/wlan-ng/prism2mgmt.c
+++ b/drivers/staging/wlan-ng/prism2mgmt.c
@@ -939,7 +939,7 @@ int prism2mgmt_flashdl_state(wlandevice_
 		}
 	}
 
-	return 0;
+	return result;
 }
 
 /*----------------------------------------------------------------