aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/err.h
diff options
context:
space:
mode:
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)
34 return IS_ERR_VALUE((unsigned long)ptr); 34 return IS_ERR_VALUE((unsigned long)ptr);
35} 35}
36 36
37static inline long IS_ERR_OR_NULL(const void *ptr)
38{
39 return !ptr || IS_ERR_VALUE((unsigned long)ptr);
40}
41
37/** 42/**
38 * ERR_CAST - Explicitly cast an error-valued pointer to another pointer type 43 * ERR_CAST - Explicitly cast an error-valued pointer to another pointer type
39 * @ptr: The pointer to cast. 44 * @ptr: The pointer to cast.