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 3C2AD3AC1C; Tue, 8 Apr 2025 11:49:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744112956; cv=none; b=KeTEH5Nl3bAtc9SPNPhrz6BzyjwIU4dmJ90cZFxjnN3CPr2yj5RSaopp/lBvwTQz0r/mNlTCWbM4XIsd6iLohcXXxntUnTV55+XwCYxFmbr3NJM7Y0htQyUssJqKwDFdNU7mVIPDOzSAwBBSo09FsogDPSTlDOWhgS6IDyYqrCQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744112956; c=relaxed/simple; bh=APQpdh38OJZNTxalekmIQ7L+jlehVHeyuab3zTj1KKY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=L1CsBkFQneB/xq8eMXGJ6eE+JZKQo48hFj94+oJWZRkNbw3tZdqgQdQHkjGKMnhWqcXvXhn3AJH8Pcz9KjdN4K35SxXigYqXFXuS1tB/kp1+RlbG3PoGB8YQhUxqPQbCz4TLbdtkQcKGfURjl8s5Yp2dvWUpgwp9iFZN+6V6vCc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=FXchbvK3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="FXchbvK3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B3A39C4CEE5; Tue, 8 Apr 2025 11:49:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744112956; bh=APQpdh38OJZNTxalekmIQ7L+jlehVHeyuab3zTj1KKY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FXchbvK3ZG5+0camcmf1dWcolKOFSWGPCrdv5MQUazGvbDB/YgY30yH488JwOUGXe LdqDsWO4d6FVx/VWXPbVZL6I360fp0RGafgyLsf62db4+viRiuZAbN1FWGbgttFlQw i0EQ4pAd2tQSqgR/kMjRCojtleSP3yDdlqu0Xe80= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Markus Elfring , Jon Mason Subject: [PATCH 5.15 261/279] ntb_perf: Delete duplicate dmaengine_unmap_put() call in perf_copy_chunk() Date: Tue, 8 Apr 2025 12:50:44 +0200 Message-ID: <20250408104833.428044167@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104826.319283234@linuxfoundation.org> References: <20250408104826.319283234@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Markus Elfring commit 4279e72cab31dd3eb8c89591eb9d2affa90ab6aa upstream. The function call “dmaengine_unmap_put(unmap)” was used in an if branch. The same call was immediately triggered by a subsequent goto statement. Thus avoid such a call repetition. This issue was detected by using the Coccinelle software. Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support") Cc: stable@vger.kernel.org Signed-off-by: Markus Elfring Signed-off-by: Jon Mason Signed-off-by: Greg Kroah-Hartman --- drivers/ntb/test/ntb_perf.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/drivers/ntb/test/ntb_perf.c +++ b/drivers/ntb/test/ntb_perf.c @@ -839,10 +839,8 @@ static int perf_copy_chunk(struct perf_t dma_set_unmap(tx, unmap); ret = dma_submit_error(dmaengine_submit(tx)); - if (ret) { - dmaengine_unmap_put(unmap); + if (ret) goto err_free_resource; - } dmaengine_unmap_put(unmap);