drm/fb-helper: Copy dma-buf map before flushing shadow fb

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Copy the vmap()'ed instance of struct dma_buf_map before modifying it,
in case the implementation of vunmap() depends on the exact address.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201120102545.4047-10-tzimmermann@suse.de

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This commit is contained in:

Thomas Zimmermann 2020-11-20 11:25:44 +01:00

parent 4270d6f60d

commit 7d4d269c09

1 changed files with 3 additions and 2 deletions

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drivers/gpu/drm/drm_fb_helper.c

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