linux-kernel - [PATCH -next] tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm

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Message-ID: <20220318060201.50488-1-xiujianfeng@huawei.com>
Date:   Fri, 18 Mar 2022 14:02:01 +0800
From:   Xiu Jianfeng <xiujianfeng@...wei.com>
To:     <mpe@...erman.id.au>, <benh@...nel.crashing.org>,
        <paulus@...ba.org>, <peterhuewe@....de>, <jarkko@...nel.org>,
        <jgg@...pe.ca>, <nayna@...ux.ibm.com>, <stefanb@...ux.ibm.com>
CC:     <linuxppc-dev@...ts.ozlabs.org>, <linux-integrity@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()

Currently it returns zero when CRQ response timed out, it should return
an error code instead.

Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 drivers/char/tpm/tpm_ibmvtpm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 3af4c07a9342..d3989b257f42 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -681,6 +681,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
 	if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
 				ibmvtpm->rtce_buf != NULL,
 				HZ)) {
+		rc = -ENODEV;
 		dev_err(dev, "CRQ response timed out\n");
 		goto init_irq_cleanup;
 	}
-- 
2.17.1