]> www.infradead.org Git - users/jedix/linux-maple.git/commit
powerpc/iommu: fix memory leak with using debugfs_lookup()
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 2 Feb 2023 14:19:19 +0000 (15:19 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 17 Mar 2023 07:50:30 +0000 (08:50 +0100)
commit24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2
tree1fc90697b42abacedc5f203f4da84f2f9eb8b389
parentac872bb004c3033afef0bfe06d3558744aeca739
powerpc/iommu: fix memory leak with using debugfs_lookup()

[ Upstream commit b505063910c134778202dfad9332dfcecb76bab3 ]

When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time.  To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230202141919.2298821-1-gregkh@linuxfoundation.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/powerpc/kernel/iommu.c