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authorXiu Jianfeng <xiujianfeng@huawei.com>2022-03-18 14:02:01 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-06-06 08:20:57 +0200
commit2e3d708313d9eddfe6d389d6ff7ff6158635b9c6 (patch)
tree3fb603e087eeade400dd386a9fa5dbce9bcc8ed4
parent388bc1e69663956f8cee43af3bd02bd3061d222d (diff)
tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()
commit d0dc1a7100f19121f6e7450f9cdda11926aa3838 upstream. 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@huawei.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/char/tpm/tpm_ibmvtpm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 3ba67bc6baba..80647eb071fd 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -692,6 +692,7 @@ 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;
}