diff options
Diffstat (limited to 'include/linux/err.h')
-rw-r--r-- | include/linux/err.h | 5 |
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 | ||
37 | static 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. |