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| author | mjacob <mjacob@FreeBSD.org> | 1999-01-03 22:57:54 +0000 |
|---|---|---|
| committer | mjacob <mjacob@FreeBSD.org> | 1999-01-03 22:57:54 +0000 |
| commit | 97dd49d76d7a0d9dad9e5ab09cea3fff2457b023 (patch) | |
| tree | 0b4c180d6507232da652c272e88aeb02e72a613d /sys | |
| parent | c9db69e854914f2881e1cc321e82e85e041ff157 (diff) | |
| download | FreeBSD-src-97dd49d76d7a0d9dad9e5ab09cea3fff2457b023.zip FreeBSD-src-97dd49d76d7a0d9dad9e5ab09cea3fff2457b023.tar.gz | |
Temporary workaround (bandaid) for case where you have READ
CAPACITY fail for a non-removable media device. There's a race
condition where the device entry is removed and then
xpt_release_ccb is called which attempts to give back the ccb
to a device that's now gone. In this bandaid release the ccb
early and then remember to not call xpt_release_ccb later.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/cam/scsi/scsi_da.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/cam/scsi/scsi_da.c b/sys/cam/scsi/scsi_da.c index fe8ce1a..4ed0b5c 100644 --- a/sys/cam/scsi/scsi_da.c +++ b/sys/cam/scsi/scsi_da.c @@ -25,7 +25,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: scsi_da.c,v 1.15 1998/12/11 03:54:43 gibbs Exp $ + * $Id: scsi_da.c,v 1.16 1998/12/23 16:48:17 mjacob Exp $ */ #include "opt_hw_wdog.h" @@ -1367,7 +1367,8 @@ dadone(struct cam_periph *periph, union ccb *done_ccb) printf("got CAM status %#x\n", done_ccb->ccb_h.status); } - + xpt_release_ccb(done_ccb); + done_ccb = NULL; xpt_print_path(periph->path); printf("fatal error, failed" " to attach to device\n"); @@ -1397,7 +1398,8 @@ dadone(struct cam_periph *periph, union ccb *done_ccb) /* No-op. We're polling */ return; } - xpt_release_ccb(done_ccb); + if (done_ccb) + xpt_release_ccb(done_ccb); } static int |
