On Mon, Nov 07, 2022 at 07:46:55PM -0300, Maíra Canal wrote: > mutex_init() is supposed to be balanced by a call to mutex_destroy(), but > this is not currently happening on the v3d driver. > > Considering the introduction of a DRM-managed mutex_init variant, switch > to drmm_mutex_init. > > Signed-off-by: Maíra Canal <mcanal@xxxxxxxxxx> Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> > --- > drivers/gpu/drm/v3d/v3d_gem.c | 17 +++++++++++++---- > 1 file changed, 13 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c > index b8980440d137..96af1cb5202a 100644 > --- a/drivers/gpu/drm/v3d/v3d_gem.c > +++ b/drivers/gpu/drm/v3d/v3d_gem.c > @@ -10,6 +10,7 @@ > #include <linux/sched/signal.h> > #include <linux/uaccess.h> > > +#include <drm/drm_managed.h> > #include <drm/drm_syncobj.h> > #include <uapi/drm/v3d_drm.h> > > @@ -1075,10 +1076,18 @@ v3d_gem_init(struct drm_device *dev) > > spin_lock_init(&v3d->mm_lock); > spin_lock_init(&v3d->job_lock); > - mutex_init(&v3d->bo_lock); > - mutex_init(&v3d->reset_lock); > - mutex_init(&v3d->sched_lock); > - mutex_init(&v3d->cache_clean_lock); > + ret = drmm_mutex_init(dev, &v3d->bo_lock); > + if (ret) > + return ret; > + ret = drmm_mutex_init(dev, &v3d->reset_lock); > + if (ret) > + return ret; > + ret = drmm_mutex_init(dev, &v3d->sched_lock); > + if (ret) > + return ret; > + ret = drmm_mutex_init(dev, &v3d->cache_clean_lock); > + if (ret) > + return ret; > > /* Note: We don't allocate address 0. Various bits of HW > * treat 0 as special, such as the occlusion query counters > -- > 2.38.1 > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
