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| author | Richard Lowe <richlowe@richlowe.net> | 2010-10-11 18:41:37 -0400 |
|---|---|---|
| committer | Richard Lowe <richlowe@richlowe.net> | 2010-10-11 18:41:37 -0400 |
| commit | 746b01876e5bb0aa289cb6ff1991bc355e4385b6 (patch) | |
| tree | cf5259d7b1db8a12b8b63fa863dfb31ee9ea7b69 /usr/src/cmd/modload/drvsubr.c | |
| parent | 88181e00c06e1cd9871de83b79e83b00100d29cd (diff) | |
| download | illumos-gate-746b01876e5bb0aa289cb6ff1991bc355e4385b6.tar.gz | |
260 some drivers erroneously discount a major of 0
Reviewed by: garrett@nexenta.com, gwr@nexenta.com
Approved by: garrett@nexenta.com
--HG--
extra : rebase_source : c6cee93f834c8cf7b1e18611bf25a08cdc849953
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; |