libudev: introduce return_with_errno() and use it where applicable

2018-11-22 23:49:55 +09:00
parent 6f9fe58189
commit fd05c424c0
7 changed files with 94 additions and 160 deletions
@@ -334,6 +334,12 @@ static inline int __coverity_check__(int condition) {
                }                                                       \
        } while (false)

+#define return_with_errno(r, err)                     \
+        do {                                          \
+                errno = abs(err);                     \
+                return r;                             \
+        } while (false)
+
 #define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
 #define INT_TO_PTR(u) ((void *) ((intptr_t) (u)))
 #define PTR_TO_UINT(p) ((unsigned) ((uintptr_t) (p)))