diff options
Diffstat (limited to 'udev/lib/libudev.c')
| -rw-r--r-- | udev/lib/libudev.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/udev/lib/libudev.c b/udev/lib/libudev.c index 56bd47741d..a5f33eb08f 100644 --- a/udev/lib/libudev.c +++ b/udev/lib/libudev.c @@ -32,6 +32,13 @@ #include "libudev-private.h" #include "../udev.h" +struct udev { + int refcount; + void (*log_fn)(struct udev *udev, + int priority, const char *file, int line, const char *fn, + const char *format, va_list args); +}; + void udev_log(struct udev *udev, int priority, const char *file, int line, const char *fn, const char *format, ...) @@ -110,6 +117,8 @@ struct udev *udev_new(void) **/ struct udev *udev_ref(struct udev *udev) { + if (udev == NULL) + return NULL; udev->refcount++; return udev; } @@ -124,6 +133,8 @@ struct udev *udev_ref(struct udev *udev) **/ void udev_unref(struct udev *udev) { + if (udev == NULL) + return; udev->refcount--; if (udev->refcount > 0) return; @@ -164,6 +175,8 @@ void udev_set_log_fn(struct udev *udev, **/ const char *udev_get_sys_path(struct udev *udev) { + if (udev == NULL) + return NULL; return sysfs_path; } @@ -179,5 +192,7 @@ const char *udev_get_sys_path(struct udev *udev) **/ const char *udev_get_dev_path(struct udev *udev) { + if (udev == NULL) + return NULL; return udev_root; } |