[PATCH v2] tpm: ibmvtpm: fix error return code in tpm_ibmvtpm_probe()

[Stefan Berger]

From: Stefan Berger <stefanb at linux.ibm.com>

Return error code -ETIMEDOUT rather than '0' when waiting for the
rtce_buf to be set has timed out.

Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Wang Hai <wanghai38 at huawei.com>
Signed-off-by: Stefan Berger <stefanb at linux.ibm.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 994385bf37c0..813eb2cac0ce 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -687,6 +687,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
 				ibmvtpm->rtce_buf != NULL,
 				HZ)) {
 		dev_err(dev, "CRQ response timed out\n");
+		rc = -ETIMEDOUT;
 		goto init_irq_cleanup;
 	}
 
-- 
2.25.4