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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-01-12 12:59:05 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-01-12 12:59:05 +0000
commit163849ea9b4c5d50fbd324692461983d18faadad (patch)
tree7176a18fea53560eb4092aa103d94a266ab4e60d /include/linux/err.h
parent2138301e1687bd4f22aa2b4df4829b6ffdae19bc (diff)
parent5ee518ecbcb5934e284ea51a19a939c891f5f7ea (diff)
Merge branch 'for-2.6.33' into for-2.6.34
Diffstat (limited to 'include/linux/err.h')
-rw-r--r--include/linux/err.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/err.h b/include/linux/err.h
index ec87f3142bf..1b12642636c 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -34,6 +34,11 @@ static inline long IS_ERR(const void *ptr)
return IS_ERR_VALUE((unsigned long)ptr);
}
+static inline long IS_ERR_OR_NULL(const void *ptr)
+{
+ return !ptr || IS_ERR_VALUE((unsigned long)ptr);
+}
+
/**
* ERR_CAST - Explicitly cast an error-valued pointer to another pointer type
* @ptr: The pointer to cast.