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Do not call BUS_DRIVER_ADDED() for detached buses (attach failed) on

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driver load. This fixes crash on atapicam module load on systems,
where some ata channels (usually ata1) was probed, but failed to attach.

Reviewed by:	jhb, imp
Tested by:	many
This commit is contained in:
Alexander Motin 2009-09-24 17:03:32 +00:00
parent 839dd22afd
commit 6090db7d38
1 changed files with 1 additions and 1 deletions
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2
sys/kern/subr_bus.c
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@ -1017,7 +1017,7 @@ devclass_driver_added(devclass_t dc, driver_t *driver)
* Call BUS_DRIVER_ADDED for any existing busses in this class.
*/
for (i = 0; i < dc->maxunit; i++)
if (dc->devices[i])
if (dc->devices[i] && device_is_attached(dc->devices[i]))
BUS_DRIVER_ADDED(dc->devices[i], driver);
/*