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| author | Zhu Ling <zhuling0805@qq.com> | 2026-09-04 17:07:46 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulfh@kernel.org> | 2026-09-10 14:20:54 +0200 |
| commit | 08b54e16d547d5c1aa61bf7a3595bb1620975eeb (patch) | |
| tree | bbbe44b6f92069236c842c3ae4886fcfb289bcc1 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 9c182bc5d7817437a7d04ab96133f9191846d93d (diff) | |
| download | linux-next-08b54e16d547d5c1aa61bf7a3595bb1620975eeb.tar.gz linux-next-08b54e16d547d5c1aa61bf7a3595bb1620975eeb.zip | |
mmc: core: Fix OF node reference leak on card add failure
mmc_of_find_child_device() returns a device node with its reference count
incremented. mmc_add_card() stores the reference before calling
device_add(), while the card is marked present only after device_add()
succeeds.
If device_add() fails, the callers release the card through
mmc_remove_card(). However, mmc_remove_card() only drops the OF node
reference for a present card, leaking the reference on this error path.
Move of_node_put() outside the present-card conditional so the reference
is released for both registered cards and card-add failures.
Fixes: 25185f3f31c9 ("mmc: Add SDIO function devicetree subnode parsing")
Cc: stable@vger.kernel.org
Signed-off-by: Zhu Ling <zhuling0805@qq.com>
Reviewed-by: Shawn Lin <shawn.lin@linux.dev>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions