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authorAnton Blanchard <anton@samba.org>2010-05-17 14:33:53 +1000
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-17 07:57:27 -0700
commitf3d46f9d3194e0329216002a8724d4c0957abc79 (patch)
tree6d9413e4a448d7b8d342c40297c4fbe0b9c4c2f0 /arch/m32r
parente40152ee1e1c7a63f4777791863215e3faa37a86 (diff)
downloadlinux-2.6.34-ux500-f3d46f9d3194e0329216002a8724d4c0957abc79.tar.gz
atomic_t: Cast to volatile when accessing atomic variables
In preparation for removing volatile from the atomic_t definition, this patch adds a volatile cast to all the atomic read functions. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m32r')
-rw-r--r--arch/m32r/include/asm/atomic.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 63f0cf0f50d..d44a51e5271 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -26,7 +26,7 @@
*
* Atomically reads the value of @v.
*/
-#define atomic_read(v) ((v)->counter)
+#define atomic_read(v) (*(volatile int *)&(v)->counter)
/**
* atomic_set - set atomic variable