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| author | Ma Ke <make24@iscas.ac.cn> | 2025-07-17 10:23:09 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-18 17:13:50 -0700 |
| commit | 96e056ffba912ef18a72177f71956a5b347b5177 (patch) | |
| tree | e757021254942309783fdc8c004a5b84185de0ab /scripts/lib/kdoc/kdoc_parser.py | |
| parent | ee9f3a81ab08dfe0538dbd1746f81fd4d5147fdc (diff) | |
dpaa2-switch: Fix device reference count leak in MAC endpoint handling
The fsl_mc_get_endpoint() function uses device_find_child() for
localization, which implicitly calls get_device() to increment the
device's reference count before returning the pointer. However, the
caller dpaa2_switch_port_connect_mac() fails to properly release this
reference in multiple scenarios. We should call put_device() to
decrement reference count properly.
As comment of device_find_child() says, 'NOTE: you will need to drop
the reference with put_device() after use'.
Found by code review.
Cc: stable@vger.kernel.org
Fixes: 84cba72956fd ("dpaa2-switch: integrate the MAC endpoint support")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250717022309.3339976-3-make24@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_parser.py')
0 files changed, 0 insertions, 0 deletions