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Fix NULL-deference kernel panic on attempt of destroying non-existing

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ramdisk-backed CTL LUN.
This commit is contained in:
Alexander Motin 2013-07-03 14:58:11 +00:00
parent 82fbf0f6ea
commit ce300fbfb7
1 changed files with 3 additions and 8 deletions
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11
sys/cam/ctl/ctl_backend_ramdisk.c
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@ -441,6 +441,9 @@ ctl_backend_ramdisk_rm(struct ctl_be_ramdisk_softc *softc,
snprintf(req->error_str, sizeof(req->error_str),
"%s: error %d returned from ctl_invalidate_lun() for "
"LUN %d", __func__, retval, params->lun_id);
mtx_lock(&softc->lock);
be_lun->flags &= ~CTL_BE_RAMDISK_LUN_WAITING;
mtx_unlock(&softc->lock);
goto bailout_error;
}
@ -475,14 +478,6 @@ ctl_backend_ramdisk_rm(struct ctl_be_ramdisk_softc *softc,
return (retval);
bailout_error:
/*
* Don't leave the waiting flag set.
*/
mtx_lock(&softc->lock);
be_lun->flags &= ~CTL_BE_RAMDISK_LUN_WAITING;
mtx_unlock(&softc->lock);
req->status = CTL_LUN_ERROR;
return (0);