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author | Jakub Kicinski <kuba@kernel.org> | 2020-07-10 02:42:44 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2020-07-10 22:54:00 +0200 |
commit | a2b992c828f7651db369ba8f0eb0818d70232636 (patch) | |
tree | f66e1c6eeb40d7acf38ad802e80df4efdde2e2f3 /Documentation/block/switching-sched.rst | |
parent | Merge branch 'Expose-port-split-attributes' (diff) | |
download | linux-a2b992c828f7651db369ba8f0eb0818d70232636.tar.xz linux-a2b992c828f7651db369ba8f0eb0818d70232636.zip |
debugfs: make sure we can remove u32_array files cleanly
debugfs_create_u32_array() allocates a small structure to wrap
the data and size information about the array. If users ever
try to remove the file this leads to a leak since nothing ever
frees this wrapper.
That said there are no upstream users of debugfs_create_u32_array()
that'd remove a u32 array file (we only have one u32 array user in
CMA), so there is no real bug here.
Make callers pass a wrapper they allocated. This way the lifetime
management of the wrapper is on the caller, and we can avoid the
potential leak in debugfs.
CC: Chucheng Luo <luochucheng@vivo.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/block/switching-sched.rst')
0 files changed, 0 insertions, 0 deletions