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authorJiri Kosina <jkosina@suse.cz>2010-02-03 01:10:39 +0300
committerJiri Kosina <jkosina@suse.cz>2010-02-03 01:10:39 +0300
commite1a0bdd8022317e98650e70850de73eccfcde5ad (patch)
tree462f63307118b95c8cbacee6954e4d09ee85b8d1 /include/linux/err.h
parent8127f4e883666c9960cfa89cffd36313748f8bab (diff)
parent1a45dcfe2525e9432cb4aba461d4994fc2befe42 (diff)
downloadlinux-e1a0bdd8022317e98650e70850de73eccfcde5ad.tar.xz
Merge branch 'master' into upstream
Conflicts: drivers/hid/hid-ids.h
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 ec87f3142bf3..1b12642636c7 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.