]> www.infradead.org Git - users/jedix/linux-maple.git/commit
drm/etnaviv: fix reference leak when mmaping imported buffer
authorLucas Stach <l.stach@pengutronix.de>
Fri, 24 Feb 2023 17:21:54 +0000 (18:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 6 Apr 2023 10:10:55 +0000 (12:10 +0200)
commitf931ca46773a4f02040f63b4cdd1b14abcc130c1
tree84443cbea9afc06a715ab1d7382c5785de3750c9
parent3f878da42862ca0a75051846bf992ff2c370bea6
drm/etnaviv: fix reference leak when mmaping imported buffer

commit 963b2e8c428f79489ceeb058e8314554ec9cbe6f 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>
drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c