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disp: msm: use iterator APIs to walk the connector list

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Use the DRM APIs for walking the list of connectors. This ensures
the proper locks are taken to prevent possible corruption by other
threads.

Change-Id: Iacdd1c6ad8eab224ceac550e0229489851a09706
Signed-off-by: Steve Cohen <cohens@codeaurora.org>
This commit is contained in:
Steve Cohen
2019-11-25 18:27:18 -05:00
parent bfbb5f63e7
commit 8469b7be9e
3 changed files with 36 additions and 24 deletions
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20
msm/sde/sde_rm.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
*/
#define pr_fmt(fmt) "[drm:%s] " fmt, __func__
@@ -1862,15 +1862,19 @@ static struct sde_rm_rsvp *_sde_rm_get_rsvp_nxt(
static struct drm_connector *_sde_rm_get_connector(
struct drm_encoder *enc)
{
struct drm_connector *conn = NULL;
struct list_head *connector_list =
&enc->dev->mode_config.connector_list;
struct drm_connector *conn = NULL, *conn_search;
struct drm_connector_list_iter conn_iter;
list_for_each_entry(conn, connector_list, head)
if (conn->encoder == enc)
return conn;
drm_connector_list_iter_begin(enc->dev, &conn_iter);
drm_for_each_connector_iter(conn_search, &conn_iter) {
if (conn_search->encoder == enc) {
conn = conn_search;
break;
}
}
drm_connector_list_iter_end(&conn_iter);
return NULL;
return conn;
}
int sde_rm_update_topology(struct drm_connector_state *conn_state,