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 5F1B2168B4 for ; Mon, 8 May 2023 09:55:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B3E4AC433A0; Mon, 8 May 2023 09:55:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683539748; bh=b6/Ys0tOR2qmW3ze1O136kpJzwLC1eBz7ItdANpdi+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e3gjXPYtLkvO1Dn6SADYtVEv+pPl9/dMt3JPi1J68rq9NLZkTwRkQ/buuWadZAUPr 3FiQtt+lcSc/E2LBljQ2/hbKA6zntNeeHHYyVzZYac1lCMdkbWvYgeSTIRlwIhjkvS S2iwnGTDn+BmdqwVZZ6Fk2ddKCjuXF8Zv6TB7xYU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lino Sanfilippo , =?UTF-8?q?Michael=20Niew=C3=B6hner?= , Jarkko Sakkinen , Sasha Levin Subject: [PATCH 6.1 124/611] tpm, tpm_tis: Disable interrupts if tpm_tis_probe_irq() failed Date: Mon, 8 May 2023 11:39:26 +0200 Message-Id: <20230508094426.304855552@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094421.513073170@linuxfoundation.org> References: <20230508094421.513073170@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: Lino Sanfilippo [ Upstream commit 6d789ad726950e612a7f31044260337237c5b490 ] Both functions tpm_tis_probe_irq_single() and tpm_tis_probe_irq() may setup the interrupts and then return with an error. This case is indicated by a missing TPM_CHIP_FLAG_IRQ flag in chip->flags. Currently the interrupt setup is only undone if tpm_tis_probe_irq_single() fails. Undo the setup also if tpm_tis_probe_irq() fails. Signed-off-by: Lino Sanfilippo Tested-by: Michael Niewöhner Tested-by: Jarkko Sakkinen Reviewed-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen Stable-dep-of: 955df4f87760 ("tpm, tpm_tis: Claim locality when interrupts are reenabled on resume") Signed-off-by: Sasha Levin --- drivers/char/tpm/tpm_tis_core.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index a2cbf9b6f4c92..4e6075d4e2643 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -1087,21 +1087,21 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq, goto out_err; } - if (irq) { + if (irq) tpm_tis_probe_irq_single(chip, intmask, IRQF_SHARED, irq); - if (!(chip->flags & TPM_CHIP_FLAG_IRQ)) { - dev_err(&chip->dev, FW_BUG + else + tpm_tis_probe_irq(chip, intmask); + + if (!(chip->flags & TPM_CHIP_FLAG_IRQ)) { + dev_err(&chip->dev, FW_BUG "TPM interrupt not working, polling instead\n"); - rc = request_locality(chip, 0); - if (rc < 0) - goto out_err; - disable_interrupts(chip); - release_locality(chip, 0); - } - } else { - tpm_tis_probe_irq(chip, intmask); + rc = request_locality(chip, 0); + if (rc < 0) + goto out_err; + disable_interrupts(chip); + release_locality(chip, 0); } } -- 2.39.2