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| author | Johan Hovold <[email protected]> | 2024-02-17 15:02:24 +0000 |
|---|---|---|
| committer | Dmitry Baryshkov <[email protected]> | 2024-02-23 15:00:56 +0000 |
| commit | e5ca263508f7e9d2cf711edf3258d11ca087885c (patch) | |
| tree | 3084c6c0188c02c757fb2946b4e440b55266c6a5 /drivers/usb/cdns3/cdns3-starfive.c | |
| parent | drm/bridge: aux-hpd: fix OF node leaks (diff) | |
| download | kernel-e5ca263508f7e9d2cf711edf3258d11ca087885c.tar.gz kernel-e5ca263508f7e9d2cf711edf3258d11ca087885c.zip | |
drm/bridge: aux-hpd: separate allocation and registration
Combining allocation and registration is an anti-pattern that should be
avoided. Add two new functions for allocating and registering an dp-hpd
bridge with a proper 'devm' prefix so that it is clear that these are
device managed interfaces.
devm_drm_dp_hpd_bridge_alloc()
devm_drm_dp_hpd_bridge_add()
The new interface will be used to fix a use-after-free bug in the
Qualcomm PMIC GLINK driver and may prevent similar issues from being
introduced elsewhere.
The existing drm_dp_hpd_bridge_register() is reimplemented using the
above and left in place for now.
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Dmitry Baryshkov <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/usb/cdns3/cdns3-starfive.c')
0 files changed, 0 insertions, 0 deletions