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gpioc: cleanup if pin allocation fails
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Authored by vexeduxr on Aug 18 2025, 10:53 AM.
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Details

Summary

gpioc normally depends on gpioc_cdevpriv_dtor to call
gpioc_release_pin_intr when it's done with a pin. However, if
gpioc_allocate_pin_intr fails, the pin is never added to the linked list
which the destructor loops over to free the pins. Make it so
gpioc_allocate_pin_intr cleans up after itself if it fails.

Reported by: Evgenii Ivanov <devivanov@proton.me>

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rG FreeBSD src repository
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