mfd: tps65217: Fix NULL pointer dereference on IRQ init failure

tps65217_probe() ignores the return value of tps65217_irq_init(), so
when the irq domain creation fails the probe still completes and the
driver ends up bound with a NULL tps->irq_domain. Unloading the
module then makes tps65217_remove() call irq_domain_remove() on the
NULL pointer and oops the kernel. On top of that, irq_find_mapping()
may fall back to the default irq domain and dispose of mappings that
belong to other interrupt controllers.

Check the return value and abort the probe on failure so the error
is reported and no inconsistent state is left for removal.

Fixes: 6556bdacf646fcaa ("mfd: tps65217: Add support for IRQs")
Cc: stable@vger.kernel.org
Signed-off-by: Radiy Zhambakiev <r.zhambakiev@prosoftsystems.ru>
Reviewed-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://patch.msgid.link/20261002113624.178588-2-r.zhambakiev@prosoftsystems.ru
Signed-off-by: Lee Jones <lee@kernel.org>

0 files changed, 0 insertions, 0 deletions