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 E3DFE309DDD; Wed, 17 Sep 2025 12:48:28 +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=1758113309; cv=none; b=JLPE1u8A1dfQILP7BKm4RZj7B6bFTKEgpKKoznfYes1Uls3/wsV2vyOu+qd7hEeXHQs/ixbd4YvYVemJOnf6qA7K7K/1B6194ZfO/iMpx9LIPO0u1ce/8N/Lynlb98fS2M2Vr8Wnm68jwguLROmnW3DnPRJcyLKYofhteZl9Fok= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758113309; c=relaxed/simple; bh=oilpdPs7Q+0auvYLeO/v09aU2hRo7DCF2zKBwgfspZk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nXJIAaNjX+kw8CV5j1UNX+pFPKmPl2sA6ufcxkYRwsoA1RIiE3636JNkc+LPYPaV4f/duM0lmbgLDxsZFtEun//7C9ONEchEDfPFf/djGHuc/YdPsikRXIgSBbYtz0b7xjIvKvPWCWhXX5efgFLYvdI8yi+Jt9aBE3Q4LNNcdeI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=L/lTVDcc; 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="L/lTVDcc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F270AC4CEF0; Wed, 17 Sep 2025 12:48:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1758113308; bh=oilpdPs7Q+0auvYLeO/v09aU2hRo7DCF2zKBwgfspZk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L/lTVDccg6P7TeOkdZue1dzNmQbd0rI0KB8R8x5MubnaiYo334Iaojy0H1vFf/UWv hwz0tXrxTb5VGO85CG2BdKpu9aupLD0WqAdgOcna3gEZw2FCdoyLgsMK8bxxOxS+qv JUw1U8E4Wqfv6E1CN10MmmfacSxGRKxmCahTaKTE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Salah Triki , "Borislav Petkov (AMD)" , Dinh Nguyen Subject: [PATCH 6.12 047/140] EDAC/altera: Delete an inappropriate dma_free_coherent() call Date: Wed, 17 Sep 2025 14:33:39 +0200 Message-ID: <20250917123345.450970128@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250917123344.315037637@linuxfoundation.org> References: <20250917123344.315037637@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Salah Triki commit ff2a66d21fd2364ed9396d151115eec59612b200 upstream. dma_free_coherent() must only be called if the corresponding dma_alloc_coherent() call has succeeded. Calling it when the allocation fails leads to undefined behavior. Delete the wrong call. [ bp: Massage commit message. ] Fixes: 71bcada88b0f3 ("edac: altera: Add Altera SDRAM EDAC support") Signed-off-by: Salah Triki Signed-off-by: Borislav Petkov (AMD) Acked-by: Dinh Nguyen Cc: stable@vger.kernel.org Link: https://lore.kernel.org/aIrfzzqh4IzYtDVC@pc Signed-off-by: Greg Kroah-Hartman --- drivers/edac/altera_edac.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -128,7 +128,6 @@ static ssize_t altr_sdr_mc_err_inject_wr ptemp = dma_alloc_coherent(mci->pdev, 16, &dma_handle, GFP_KERNEL); if (!ptemp) { - dma_free_coherent(mci->pdev, 16, ptemp, dma_handle); edac_printk(KERN_ERR, EDAC_MC, "Inject: Buffer Allocation error\n"); return -ENOMEM;