diff options
Diffstat (limited to 'usr/src/cmd/modload/drvsubr.c')
| -rw-r--r-- | usr/src/cmd/modload/drvsubr.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/usr/src/cmd/modload/drvsubr.c b/usr/src/cmd/modload/drvsubr.c index 0af9f4a27f..83282f471f 100644 --- a/usr/src/cmd/modload/drvsubr.c +++ b/usr/src/cmd/modload/drvsubr.c @@ -2316,8 +2316,15 @@ update_name_to_major(char *driver_name, major_t *major_num, int server) return (ERROR); } - /* find first free major number */ - for (i = 0; i < max_dev; i++) { + /* + * Find the first free major number. + * + * Note that we begin searching from 1, as drivers have developer the + * erroneous assumption that a dev_t of 0 is invalid, and since we no + * longer include system devices in the base files, a major number of + * 0 may now be given to arbitrary devices. + */ + for (i = 1; i < max_dev; i++) { if (num_list[i] != 1) { new_maj = i; break; |