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bcm63xx: ext_intc: fix warning

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In file included from ./arch/mips/include/asm/io.h:34,
                 from ./arch/mips/include/asm/mmiowb.h:5,
                 from ./include/linux/spinlock.h:60,
                 from ./include/linux/irq.h:14,
                 from drivers/irqchip/irq-bcm6345-ext.c:10:
drivers/irqchip/irq-bcm6345-ext.c: In function 'bcm6345_ext_intc_of_init':
./arch/mips/include/asm/mach-bcm63xx/ioremap.h:48:9: warning: 'base' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return is_bcm63xx_internal_registers((unsigned long)addr);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/irqchip/irq-bcm6345-ext.c:255:16: note: 'base' was declared here
  void __iomem *base;
                ^~~~

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas 2020-05-14 16:14:52 +02:00
parent f2f2cf07a6
commit 29c3bb5f41
1 changed files with 28 additions and 0 deletions
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28
target/linux/bcm63xx/patches-5.4/325-irqchip-bcm6345-external-fix-base-uninitialized.patch Normal file
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@ -0,0 +1,28 @@
--- a/drivers/irqchip/irq-bcm6345-ext.c
+++ b/drivers/irqchip/irq-bcm6345-ext.c
@@ -271,21 +271,19 @@ static int __init bcm6345_ext_intc_of_in
for (i = 0; i < num_irqs; i++) {
irqs[i] = irq_of_parse_and_map(node, i);
- if (!irqs[i]) {
- ret = -ENOMEM;
- goto out_unmap;
- }
+ if (!irqs[i])
+ return -ENOMEM;
}
base = of_iomap(node, 0);
if (!base)
- goto out_unmap;
+ return -ENXIO;
ret = __bcm6345_ext_intc_init(node, num_irqs, irqs, base, shift,
toggle_clear_on_ack);
if (!ret)
return 0;
-out_unmap:
+
iounmap(base);
for (i = 0; i < num_irqs; i++)