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linux/drivers/gpu/drm/via
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Alisa Khabibrakhmanova 5e1bfb277d drm/via: Add new condition to via_dma_cleanup() 
Pointer dev_priv->mmio, which was checked for NULL at via_do_init_map(),
is passed to via_do_cleanup_map() and is dereferenced there without check.

The patch adds the condition in via_dma_cleanup() which prevents potential NULL
pointer dereference.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 22f579c621 ("drm: Add via unichrome support")
Signed-off-by: Alisa Khabibrakhmanova <khabibrakhmanova@ispras.ru>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220729090643.240778-1-khabibrakhmanova@ispras.ru
History 2022-09-07 07:01:16 +02:00
..
Makefile drm/via: Embed via_verifier in via_dri1 2022-07-16 09:26:19 +02:00
via_3d_reg.h drm/via: Fix style issues in via_3d_reg header 2022-07-16 09:32:20 +02:00
via_dri1.c drm/via: Add new condition to via_dma_cleanup() 2022-09-07 07:01:16 +02:00