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authorJesper Nilsson <jesper.nilsson@axis.com>2010-08-03 18:50:06 +0200
committerJesper Nilsson <jesper.nilsson@axis.com>2010-08-04 13:02:34 +0200
commit243ba2fa461a22e01e5905dd299babeaeeb418e2 (patch)
treebaa0b1c9c26ab875b29d7aec3f2a198ecbfa2fb7 /arch/cris/include
parenta3af54ffa9fb0e3ce66904bd316f079cafad1bd5 (diff)
downloadlinux-2.6.38-lt-ux500-243ba2fa461a22e01e5905dd299babeaeeb418e2.tar.gz
CRIS: Check if pointer is set before using it
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/include')
-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);
}