[PATCH 4.9 092/148] irqchip/crossbar: Fix incorrect type of register size

Greg Kroah-Hartman
2017-12-12T13:15:58Z

From: Franck Demathieu <fdemathieu@gmail.com>

[ Upstream commit 4b9de5da7e120c7f02395da729f0ec77ce7a6044 ]

The 'size' variable is unsigned according to the dt-bindings.
As this variable is used as integer in other places, create a new variable
that allows to fix the following sparse issue (-Wtypesign):

drivers/irqchip/irq-crossbar.c:279:52: warning: incorrect type in argument 3 (different signedness)
drivers/irqchip/irq-crossbar.c:279:52: expected unsigned int [usertype] *out_value
drivers/irqchip/irq-crossbar.c:279:52: got int *<noident>

Signed-off-by: Franck Demathieu <fdemathieu@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/irqchip/irq-crossbar.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -199,7 +199,7 @@ static const struct irq_domain_ops cross
static int __init crossbar_of_init(struct device_node *node)
{
int i, size, reserved = 0;
- u32 max = 0, entry;
+ u32 max = 0, entry, reg_size;
const __be32 *irqsr;
int ret = -ENOMEM;

@@ -276,9 +276,9 @@ static int __init crossbar_of_init(struc
if (!cb->register_offsets)
goto err_irq_map;

- of_property_read_u32(node, "ti,reg-size", &size);
+ of_property_read_u32(node, "ti,reg-size", &reg_size);

- switch (size) {
+ switch (reg_size) {
case 1:
cb->write = crossbar_writeb;
break;
@@ -304,7 +304,7 @@ static int __init crossbar_of_init(struc
continue;

cb->register_offsets[i] = reserved;
- reserved += size;
+ reserved += reg_size;
}

of_property_read_u32(node, "ti,irqs-safe-map", &cb->safe_map);