wifi: mt76: mt7915: fix ext PHY use-after-free on register error path

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After mt7915_register_ext_phy() succeeded, a failure of the main PHY
mt7915_init_debugfs() or mt7915_coredump_register() unwound through
free_phy2, which called ieee80211_free_hw() on the ext PHY hw while it
was still registered with mac80211, since mt76_unregister_device() only
unregisters the main hw. Unregister the ext PHY (thermal + phy + hw)
first and skip the redundant free.

Fixes: 7b8e1ae886 ("mt76: mt7915: rework hardware/phy initialization")
Link: https://patch.msgid.link/20260727150434.1778520-3-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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Felix Fietkau 2026-07-27 15:04:22 +00:00

parent 3ae8ad277e

commit 15b960014f

1 changed files with 7 additions and 2 deletions

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9

drivers/net/wireless/mediatek/mt76/mt7915/init.c

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