[PATCH] irq: mips: Export irq_err_count to modules

[Genjian Zhang]

From: huhai <huhai@xxxxxxxxxx>

modpost complains once these drivers become modules.
  ERROR: modpost: "irq_err_count" [drivers/gpio/gpio-vr41xx.ko] undefined!

Fix it by export them when that symbol is =m.

Fixes: 27fdd325dace ("MIPS: Update VR41xx GPIO driver to use gpiolib")
Reported-by: k2ci <kernel-bot@xxxxxxxxxx>
Signed-off-by: huhai <huhai@xxxxxxxxxx>
---
 arch/mips/kernel/irq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 5e11582fe308..b0038b715008 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -38,6 +38,9 @@ void ack_bad_irq(unsigned int irq)
 }
 
 atomic_t irq_err_count;
+#ifdef CONFIG_GPIO_VR41XX_MODULE
+EXPORT_SYMBOL_GPL(irq_err_count);
+#endif
 
 int arch_show_interrupts(struct seq_file *p, int prec)
 {
-- 
2.27.0