irq_create_fwspec_mapping() can fail, returning 0 as parent_virq. In this
case vint_desc is going to be NULL in ti_sci_inta_alloc_irq() which will
cause NULL pointer dereference.
Also note that irq_create_fwspec_mapping() returns 'unsigned int' so the
check '<=' was wrong.
Use -EINVAL if irq_create_fwspec_mapping() returned with 0.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
parent_fwspec.param[1] = vint_desc->vint_id;
parent_virq = irq_create_fwspec_mapping(&parent_fwspec);
- if (parent_virq <= 0) {
+ if (parent_virq == 0) {
kfree(vint_desc);
- return ERR_PTR(parent_virq);
+ return ERR_PTR(-EINVAL);
}
vint_desc->parent_virq = parent_virq;