drm/etnaviv: fix reference leak when mmaping imported buffer

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commit 963b2e8c42 upstream.

drm_gem_prime_mmap() takes a reference on the GEM object, but before that
drm_gem_mmap_obj() already takes a reference, which will be leaked as only
one reference is dropped when the mapping is closed. Drop the extra
reference when dma_buf_mmap() succeeds.

Cc: stable@vger.kernel.org
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Lucas Stach 2023-02-24 18:21:54 +01:00 • committed by Greg Kroah-Hartman

parent a2c58c2000

commit 1122e6adc5

1 changed files with 9 additions and 1 deletions

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drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c

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