From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1521736826E; Wed, 30 Sep 2026 19:26:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790796376; cv=none; b=rXxjpcCQ350LtSoo9pPs2vmgWy+xiFE6QH5cU52uhK/5s2CKS5EUUib+FbzrQcecnU9+nkq9pFDBei/khOSgyb9NjJfsCKcRWiHV5OwkwMnjodZ1ROUKeKBP65tkUnoEiRHiukOxRCG3Zf9Pkgk5oiNnURjMdz2pkHtlz7qtMSU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790796376; c=relaxed/simple; bh=qbcNqgkA+JXz/GgQWZBuR7jlIXXty3Vz4saHEm01Xnk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kNVIBtCNu/HOAipQ9fIuZO1Ufh9gBbN/eM3aSeCL4bqCGydBr12uLW9d30aTlbq9pNCwegNdDL/SrqyGlTblkwYczaYnLqZWvt8miO0A5ZEoXEHoq+XWl5Zv24qeNyxd8h67PdrhWGoEq/SnRLeW2U8tNm+Fue/nhR2Y4OV8x9k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Y5i1cBmm; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Y5i1cBmm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 306EE1F000FF; Wed, 30 Sep 2026 19:26:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790796374; bh=2hfG6AilvT5XMjE50PyLAN9eoeJxllVH3rZiQdhszDk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Y5i1cBmmofIiHr4Ch7TOnqSioAT18s5GevsCO5YUqyicuve0kAy+OrDpgRHX3Gpiv 2r57kKuIN30Bx45KvWSl3bifbghUqFMG7ALUtbshBQhXTM1fbQkHVebAqym6PelPfd oQkvqZsxvhaMl0IwbLHym7slpiZvSW3PcaUJhH3Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Runyu Xiao , Ulf Hansson Subject: [PATCH 6.6 0890/1193] mmc: sh_mmcif: initialize IRQ-thread mutex before requesting interrupt Date: Wed, 30 Sep 2026 17:26:14 +0200 Message-ID: <20260930152454.020325487@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152434.301151190@linuxfoundation.org> References: <20260930152434.301151190@linuxfoundation.org> User-Agent: quilt/0.69 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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Runyu Xiao commit d5ea0d226e8f0801d78702142a124d78c317d822 upstream. The threaded IRQ handler can run before devm_request_threaded_irq() returns, but thread_lock was initialized afterwards. Initialize it before requesting either interrupt. Fixes: 8047310ee984 ("mmc: sh_mmcif: fix a race, causing an Oops on SMP") Cc: stable@vger.kernel.org Assisted-by: Codex:GPT-5 Signed-off-by: Runyu Xiao Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/sh_mmcif.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1423,6 +1423,7 @@ static int sh_mmcif_probe(struct platfor host->pd = pdev; spin_lock_init(&host->lock); + mutex_init(&host->thread_lock); mmc->ops = &sh_mmcif_ops; sh_mmcif_init_ocr(host); @@ -1483,8 +1484,6 @@ static int sh_mmcif_probe(struct platfor } } - mutex_init(&host->thread_lock); - ret = mmc_add_host(mmc); if (ret < 0) goto err_clk;