drm/virtio: Fix NULL vs IS_ERR checking in virtio_gpu_object_shmem_init
commit c2496873 upstream. Since drm_prime_pages_to_sg() function return error pointers. The drm_gem_shmem_get_sg_table() function returns error pointers too. Using IS_ERR() to check the return value to fix this. Fixes: 2f2aa137 ("drm/virtio: move virtio_gpu_mem_entry initialization to new function") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: http://patchwork.freedesktop.org/patch/msgid/20220602104223.54527-1-linmq006@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
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a401ef05
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