Earlier, I responded to the wrong version of the patch :(
Apologies.
>-----Original Message-----
>From: Sripada, Radhakrishna
>Sent: Wednesday, April 4, 2018 4:00 PM
>To: [email protected]
>Cc: Sripada, Radhakrishna <[email protected]>; Jani Nikula
><[email protected]>; Srivatsa, Anusha <[email protected]>
>Subject: [PATCH v2] drm/i915: Fix memory leak in intel_hdcp auth
>
>Static code analysis tool reported memory leak in intel_hdcp_auth_downstream.
>Fixing the memory leak.
>
>v2: Rebase, move free to a cleanup label(Jani)
>
>Cc: Jani Nikula <[email protected]>
>Cc: Anusha Srivatsa <[email protected]>
>Signed-off-by: Radhakrishna Sripada <[email protected]>
Reviewed-by: Anusha Srivatsa <[email protected]>
>---
> drivers/gpu/drm/i915/intel_hdcp.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/intel_hdcp.c
>b/drivers/gpu/drm/i915/intel_hdcp.c
>index 98a9c81e2dc1..2db5da550a1c 100644
>--- a/drivers/gpu/drm/i915/intel_hdcp.c
>+++ b/drivers/gpu/drm/i915/intel_hdcp.c
>@@ -435,7 +435,7 @@ int intel_hdcp_auth_downstream(struct intel_digital_port
>*intel_dig_port,
>
> ret = shim->read_ksv_fifo(intel_dig_port, num_downstream, ksv_fifo);
> if (ret)
>- return ret;
>+ goto err;
>
> /*
> * When V prime mismatches, DP Spec mandates re-read of @@ -451,12
>+451,15 @@ int intel_hdcp_auth_downstream(struct intel_digital_port
>*intel_dig_port,
>
> if (i == tries) {
> DRM_ERROR("V Prime validation failed.(%d)\n", ret);
>- return ret;
>+ goto err;
> }
>
> DRM_DEBUG_KMS("HDCP is enabled (%d downstream devices)\n",
> num_downstream);
>- return 0;
>+ ret = 0;
>+err:
>+ kfree(ksv_fifo);
>+ return ret;
> }
>
> /* Implements Part 1 of the HDCP authorization procedure */
>--
>2.9.3
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