From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C625C611A for ; Sun, 28 May 2023 19:18:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 529BDC433EF; Sun, 28 May 2023 19:18:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1685301481; bh=mSAPgZFA4yz9GJx1Yn73ZngQev9yJd2hmd8gehFIuUE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nkhyhMUVm1z94CHZ73hAg0lz0czkVdQljW9B9df2TVyBSJ+K+0/bGB+ITBnELB1Om zh5tlTY1c14rT4fBYhLz3RRKrINfiOZeT/rDQhVtzSmUsIOGKYV+dRuIMyga30lRPN hd+GtyOPNXNtce5HHfgUbZNbCbySGr/iwKdnTFaE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Qiang Ning , Lee Jones , Sasha Levin Subject: [PATCH 4.19 046/132] mfd: dln2: Fix memory leak in dln2_probe() Date: Sun, 28 May 2023 20:09:45 +0100 Message-Id: <20230528190834.983950936@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230528190833.565872088@linuxfoundation.org> References: <20230528190833.565872088@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Qiang Ning [ Upstream commit 96da8f148396329ba769246cb8ceaa35f1ddfc48 ] When dln2_setup_rx_urbs() in dln2_probe() fails, error out_free forgets to call usb_put_dev() to decrease the refcount of dln2->usb_dev. Fix this by adding usb_put_dev() in the error handling code of dln2_probe(). Signed-off-by: Qiang Ning Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230330024353.4503-1-qning0106@126.com Signed-off-by: Sasha Levin --- drivers/mfd/dln2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index fe614ba5fec90..37217e01f27c0 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -800,6 +800,7 @@ static int dln2_probe(struct usb_interface *interface, dln2_stop_rx_urbs(dln2); out_free: + usb_put_dev(dln2->usb_dev); dln2_free(dln2); return ret; -- 2.39.2