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 CB3623624CC; Sat, 12 Sep 2026 18:20:08 +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=1789237209; cv=none; b=XcfZuJaz2qnqRcOpnDKPgKZPQzFfjt0Xqr9FKIZ6Dns3P0EqszzIvxXHeduBa0pjj48iwBbdX+dEFWKPA/yw9qfDY1ZQBMD+JSZjYbUwotQVEn9paUHlSezOaZF2qZOwlqLJJVZzdt/iv6HcfKEkGZG/kPwycBWFW3nWzNkqjyM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789237209; c=relaxed/simple; bh=VGgf0FmMmlc7FHjhJqtWYtAujHsXSsrRAZF/wzScYZY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WQRMKh3MW0yIOrl4NUbt9GwoksAQe+rTJK9H/vRxK0I+0GpDPjLwC1X0WAEvSFdMUYgqK34iuXkcSkQbdipY1G3FgpNtot9NMt9dsIg2gD1tKw75OylDCcxVUeewkGuEXEUUp/YAyhZ0tRN4sMKo/Z2DOq2FT7h+fws/wu34fV8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=a/OHGtcI; 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="a/OHGtcI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 865FB1F000FF; Sat, 12 Sep 2026 18:20:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789237208; bh=/hgnghmBM75Wcd42vRSxer4osqRtK/E4k1FKeWUQM80=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=a/OHGtcIB46HrU5WsRsftjIvylxtqg6egiE+/Ql3KrBlj+JUjfARuo8gUCa9MSY7e oecoNtSm6aam24SBTmLbdortnA3GhYFdy4diFWA0W/Rd+GOxTGNkmN9weywaeBrLgb GFTIiGHv3xwojtIzjAGoZfMxjFO8RP/2eRzeu89k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ijae Kim , Myeonghun Pak , Jarkko Sakkinen Subject: [PATCH 5.15 210/935] tpm: tpm_i2c_nuvoton: disable IRQ on wait timeout Date: Sat, 12 Sep 2026 08:54:00 +0200 Message-ID: <20260912065531.642448867@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065526.833703348@linuxfoundation.org> References: <20260912065526.833703348@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Myeonghun Pak commit 705c4ed0643366963547b2616d53165f2519c81f upstream. i2c_nuvoton_wait_for_stat() enables the IRQ before waiting for the interrupt handler to report a status change. If the wait times out, or is interrupted before the handler runs, the function returns without balancing the enable_irq() call. Disable the IRQ before leaving the failed wait path. Also preserve an interrupted wait's original error code instead of converting it to -ETIMEDOUT inside the helper. Cc: stable@vger.kernel.org # v5.10+ Fixes: 4c336e4b1556 ("tpm: Add support for the Nuvoton NPCT501 I2C TPM") Co-developed-by: Ijae Kim Signed-off-by: Ijae Kim Signed-off-by: Myeonghun Pak Reviewed-by: Jarkko Sakkinen Link: https://lore.kernel.org/r/20260626091653.54929-1-mhun512@gmail.com Signed-off-by: Jarkko Sakkinen Signed-off-by: Greg Kroah-Hartman --- drivers/char/tpm/tpm_i2c_nuvoton.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/char/tpm/tpm_i2c_nuvoton.c +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c @@ -181,8 +181,10 @@ static int i2c_nuvoton_wait_for_stat(str timeout); if (rc > 0) return 0; - /* At this point we know that the SINT pin is asserted, so we - * do not need to do i2c_nuvoton_check_status */ + + disable_irq(priv->irq); + if (rc < 0) + return rc; } else { unsigned long ten_msec, stop; bool status_valid;