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crypto: hisilicon/qm - add device status check when start fails 

In function 'hisi_qm_resume', if the device fails to be started,
directly returning error code will cause the device to be unavailable.
However, the failure may be caused by device error, which will be
reported to the driver, and driver can reset and restart device.
Therefore, check device status instead of returning error code
directly. Returns 0 if device error has occurred, otherwise returns
error code.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian 2022-11-19 17:50:03 +08:00 committed by Herbert Xu
parent 3901355624
commit 5f9c97a0e6
1 changed files with 8 additions and 2 deletions
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10
drivers/crypto/hisilicon/qm.c
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@ -5468,8 +5468,14 @@ int hisi_qm_resume(struct device *dev)
}
ret = hisi_qm_start(qm);
if (ret)
pci_err(pdev, "failed to start qm(%d)\n", ret);
if (ret) {
if (qm_check_dev_error(qm)) {
pci_info(pdev, "failed to start qm due to device error, device will be reset!\n");
return 0;
}
pci_err(pdev, "failed to start qm(%d)!\n", ret);
}
return ret;
}