irqchip/ti-sci-inta: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

A coccicheck run provided information like the following.

drivers/irqchip/irq-ti-sci-inta.c:250:9-16: WARNING: ERR_CAST can be used
with vint_desc.

Generated by: scripts/coccinelle/api/err_cast.cocci

Thus adjust the exception handling in one if branch.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/776b7135-26af-df7d-c3a9-4339f7bf1f15@web.de

diff --git a/drivers/irqchip/irq-ti-sci-inta.c b/drivers/irqchip/irq-ti-sci-inta.c
index ef4d625..8f6e6b0 100644 (file)
--- a/drivers/irqchip/irq-ti-sci-inta.c
+++ b/drivers/irqchip/irq-ti-sci-inta.c
@@ -246,8 +246,8 @@ static struct ti_sci_inta_event_desc *ti_sci_inta_alloc_irq(struct irq_domain *d
        /* No free bits available. Allocate a new vint */
        vint_desc = ti_sci_inta_alloc_parent_irq(domain);
        if (IS_ERR(vint_desc)) {
-               mutex_unlock(&inta->vint_mutex);
-               return ERR_PTR(PTR_ERR(vint_desc));
+               event_desc = ERR_CAST(vint_desc);
+               goto unlock;
        }
 
        free_bit = find_first_zero_bit(vint_desc->event_map,
@@ -259,6 +259,7 @@ alloc_event:
        if (IS_ERR(event_desc))
                clear_bit(free_bit, vint_desc->event_map);
 
+unlock:
        mutex_unlock(&inta->vint_mutex);
        return event_desc;
 }