diff options
| -rw-r--r-- | sys/kern/subr_rman.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/kern/subr_rman.c b/sys/kern/subr_rman.c index f59327a..b17ea74 100644 --- a/sys/kern/subr_rman.c +++ b/sys/kern/subr_rman.c @@ -61,6 +61,7 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> +#include <sys/limits.h> #include <sys/lock.h> #include <sys/malloc.h> #include <sys/mutex.h> @@ -169,10 +170,12 @@ rman_manage_region(struct rman *rm, u_long start, u_long end) mtx_lock(rm->rm_mtx); /* Skip entries before us. */ - for (s = TAILQ_FIRST(&rm->rm_list); - s && s->r_end + 1 < r->r_start; - s = TAILQ_NEXT(s, r_link)) - ; + TAILQ_FOREACH(s, &rm->rm_list, r_link) { + if (s->r_end == ULONG_MAX) + break; + if (s->r_end + 1 >= r->r_start) + break; + } /* If we ran off the end of the list, insert at the tail. */ if (s == NULL) { |
