If intel_hdcp_validate_v_prime() has been successful within the allowed
number of tries, we can directly call drm_dbg_kms() and "goto out" without
jumping out of the loop and repeatedly judging whether the operation is
successful. This can help us reduce an unnecessary if judgment. And it's
a little clearer to read.
No functional change.
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_hdcp.c | 24 ++++++++++-------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index d8570e14fe60..c32a854eda66 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -663,13 +663,13 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
ret = shim->read_ksv_fifo(dig_port, num_downstream, ksv_fifo);
if (ret)
- goto err;
+ goto out;
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm, ksv_fifo,
num_downstream) > 0) {
drm_err(&dev_priv->drm, "Revoked Ksv(s) in ksv_fifo\n");
ret = -EPERM;
- goto err;
+ goto out;
}
/*
@@ -680,20 +680,16 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
ret = intel_hdcp_validate_v_prime(connector, shim,
ksv_fifo, num_downstream,
bstatus);
- if (!ret)
- break;
- }
-
- if (i == tries) {
- drm_dbg_kms(&dev_priv->drm,
- "V Prime validation failed.(%d)\n", ret);
- goto err;
+ if (!ret) {
+ drm_dbg_kms(&dev_priv->drm,
+ "HDCP is enabled (%d downstream devices)\n",
+ num_downstream);
+ goto out;
+ }
}
- drm_dbg_kms(&dev_priv->drm, "HDCP is enabled (%d downstream devices)\n",
- num_downstream);
- ret = 0;
-err:
+ drm_dbg_kms(&dev_priv->drm, "V Prime validation failed.(%d)\n", ret);
+out:
kfree(ksv_fifo);
return ret;
}
--
2.25.1
