From 339073ef77e45e87ec4cc8671b2d2328dcfd31f0 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 22 Jan 2016 12:03:03 +0100
Subject: [PATCH] drm/etnaviv: hold object lock while getting pages for
coredump
While all objects that get coredumped have an active IOVA and thus
pages already populated, etnaviv_gem_get_pages() still requires the
object lock to be held.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
drivers/gpu/drm/etnaviv/etnaviv_dump.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index bf8fa859e8bec..fd7d3e989e79a 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -201,7 +201,9 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
obj = vram->object;
+ mutex_lock(&obj->lock);
pages = etnaviv_gem_get_pages(obj);
+ mutex_unlock(&obj->lock);
if (pages) {
int j;
--
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