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>

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index bf8fa859e8bece4f037e1ef7eae1c6caf0a0c85d..fd7d3e989e79a5dca9696c79f71262de539f239d 100644 (file)
--- 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;