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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2017-07-24 16:51:18 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-07-24 16:51:18 -0700
commit53a7ff8fb785839b87f950fd85433d9c662fac89 (patch)
tree119840a23e5226d3f258e2309b4ef1d328535dd2 /drivers/gpu/drm/msm/msm_gem.c
parent4323418d62fefe48ee5019f2c744c918be06ec69 (diff)
parent072a7852338af900c302490474939e089f4bd4c4 (diff)
Merge branch 'bind_unbind' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into next
This brings in devm_device_add_group() and friends so that we can create driver-specific device attributes as managed resources.
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gem.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 68e509b3b9e4..50289a23baf8 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -758,6 +758,8 @@ static int msm_gem_new_impl(struct drm_device *dev,
struct msm_gem_object *msm_obj;
bool use_vram = false;
+ WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+
switch (flags & MSM_BO_CACHE_MASK) {
case MSM_BO_UNCACHED:
case MSM_BO_CACHED:
@@ -853,7 +855,11 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,
size = PAGE_ALIGN(dmabuf->size);
+ /* Take mutex so we can modify the inactive list in msm_gem_new_impl */
+ mutex_lock(&dev->struct_mutex);
ret = msm_gem_new_impl(dev, size, MSM_BO_WC, dmabuf->resv, &obj);
+ mutex_unlock(&dev->struct_mutex);
+
if (ret)
goto fail;