> Thanks for the fix. As the error handling gets longer and duplicated,
> could you rearrange them like the lima_gem_submit():
> err_out2:
> dma_unmap_sgtable(dev, &sgt, DMA_BIDIRECTIONAL, 0);
> err_out1:
> kfree(bo->base.sgt);
> bo->base.sgt = NULL;
> err_out0:
> sg_free_table(&sgt);
> return ret.
>
> Regards,
> Qiang
>
Sure, I'll send a v2 version of this patch later following your advise.
Regards,
Zhipeng
> On Fri, Jan 12, 2024 at 4:49 PM Zhipeng Lu <alexious@xxxxxxxxxx> wrote:
> >
> > When lima_vm_map_bo fails, the resources need to be deallocated, or
> > there will be memleaks.
> >
> > Fixes: 6aebc51d7aef ("drm/lima: support heap buffer creation")
> > Signed-off-by: Zhipeng Lu <alexious@xxxxxxxxxx>
> > ---
> > drivers/gpu/drm/lima/lima_gem.c | 7 ++++++-
> > 1 file changed, 6 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
> > index 4f9736e5f929..824ed22141c7 100644
> > --- a/drivers/gpu/drm/lima/lima_gem.c
> > +++ b/drivers/gpu/drm/lima/lima_gem.c
> > @@ -92,8 +92,13 @@ int lima_heap_alloc(struct lima_bo *bo, struct lima_vm *vm)
> >
> > if (vm) {
> > ret = lima_vm_map_bo(vm, bo, old_size >> PAGE_SHIFT);
> > - if (ret)
> > + if (ret) {
> > + dma_unmap_sgtable(dev, &sgt, DMA_BIDIRECTIONAL, 0);
> > + sg_free_table(&sgt);
> > + kfree(bo->base.sgt);
> > + bo->base.sgt = NULL;
> > return ret;
> > + }
> > }
> >
> > bo->heap_size = new_size;
> > --
> > 2.34.1
> >
