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drm/i915: fix possible memory leak in intel_hdcp_auth_downstream()
author
Wei Yongjun
<weiyongjun1@huawei.com>
Thu, 4 Jul 2019 10:45:34 +0000
(10:45 +0000)
committer
Jani Nikula
<jani.nikula@intel.com>
Thu, 1 Aug 2019 10:08:34 +0000
(13:08 +0300)
'ksv_fifo' is malloced in intel_hdcp_auth_downstream() and should be
freed before leaving from the error handling cases, otherwise it will
cause memory leak.
Fixes:
f26ae6a652f2
("drm/i915: SRM revocation check for HDCP1.4 and 2.2")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20190704104534.12508-1-weiyongjun1@huawei.com
drivers/gpu/drm/i915/display/intel_hdcp.c
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diff --git
a/drivers/gpu/drm/i915/display/intel_hdcp.c
b/drivers/gpu/drm/i915/display/intel_hdcp.c
index
a78139f
..
1ffc1e6
100644
(file)
--- a/
drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/
drivers/gpu/drm/i915/display/intel_hdcp.c
@@
-540,7
+540,8
@@
int intel_hdcp_auth_downstream(struct intel_connector *connector)
if (drm_hdcp_check_ksvs_revoked(dev, ksv_fifo, num_downstream)) {
DRM_ERROR("Revoked Ksv(s) in ksv_fifo\n");
- return -EPERM;
+ ret = -EPERM;
+ goto err;
}
/*