drm/shmem-helpers: vunmap: Don't put pages for dma-buf
dma-buf importing was reworked in commit 7d2cd72a ("drm/shmem-helpers: Simplify dma-buf importing"). Before that commit drm_gem_shmem_prime_import_sg_table() did set ->pages_use_count=1 and drm_gem_shmem_vunmap_locked() could call drm_gem_shmem_put_pages() unconditionally. Now without the use count set, put pages is called also on dma-bufs. Fix this by only putting pages if it's not imported. Signed-off-by:Noralf Trønnes <noralf@tronnes.org> Fixes: 7d2cd72a ("drm/shmem-helpers: Simplify dma-buf importing") Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Tested-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210219122203.51130-1-noralf@tronnes.org
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c129b498
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