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Commit c330fb1d authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Juergen Gross
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XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt


XEN data pointer which contains XEN specific information.

handler data is meant for interrupt handlers and not for storing irq chip
specific information as some devices require handler data to store internal
per interrupt information, e.g. pinctrl/GPIO chained interrupt handlers.

This obviously creates a conflict of interests and crashes the machine
because the XEN pointer is overwritten by the driver pointer.

As the XEN data is not handler specific it should be stored in
irqdesc::irq_data::chip_data instead.

A simple sed s/irq_[sg]et_handler_data/irq_[sg]et_chip_data/ cures that.

Cc: stable@vger.kernel.org
Reported-by: default avatarRoman Shaposhnik <roman@zededa.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Tested-by: default avatarRoman Shaposhnik <roman@zededa.com>
Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/87lfi2yckt.fsf@nanos.tec.linutronix.de


Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent ee87e155
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