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-rw-r--r--arch/cris/include/arch-v32/arch/io.h20
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/cris/include/arch-v32/arch/io.h b/arch/cris/include/arch-v32/arch/io.h
index 72024452cea..adc5484351b 100644
--- a/arch/cris/include/arch-v32/arch/io.h
+++ b/arch/cris/include/arch-v32/arch/io.h
@@ -46,10 +46,12 @@ static inline void crisv32_io_set(struct crisv32_iopin *iopin, int val)
unsigned long flags;
spin_lock_irqsave(&iopin->port->lock, flags);
- if (val)
- *iopin->port->data |= iopin->bit;
- else
- *iopin->port->data &= ~iopin->bit;
+ if (iopin->port->data) {
+ if (val)
+ *iopin->port->data |= iopin->bit;
+ else
+ *iopin->port->data &= ~iopin->bit;
+ }
spin_unlock_irqrestore(&iopin->port->lock, flags);
}
@@ -60,10 +62,12 @@ static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
unsigned long flags;
spin_lock_irqsave(&iopin->port->lock, flags);
- if (dir == crisv32_io_dir_in)
- *iopin->port->oe &= ~iopin->bit;
- else
- *iopin->port->oe |= iopin->bit;
+ if (iopin->port->oe) {
+ if (dir == crisv32_io_dir_in)
+ *iopin->port->oe &= ~iopin->bit;
+ else
+ *iopin->port->oe |= iopin->bit;
+ }
spin_unlock_irqrestore(&iopin->port->lock, flags);
}