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| author | thomas <thomas@FreeBSD.org> | 2003-05-14 14:20:22 +0000 |
|---|---|---|
| committer | thomas <thomas@FreeBSD.org> | 2003-05-14 14:20:22 +0000 |
| commit | 5608416700cee9cc7d38c7150d31aba7ee37cf53 (patch) | |
| tree | a6c62f42d93d414f225d88f383f17215092e6d65 /sys/dev/ata/atapi-cam.c | |
| parent | fef83dc8be41b6e2e7152bbd08d65d6acb591380 (diff) | |
| download | FreeBSD-src-5608416700cee9cc7d38c7150d31aba7ee37cf53.zip FreeBSD-src-5608416700cee9cc7d38c7150d31aba7ee37cf53.tar.gz | |
In atapi_cam_reinit_bus, only call reinit_bus if the ATAPI channel
has already been registered with ATAPI/CAM (else there is nothing
to do). atapi_cam_reinit_bus may be called before the bus is
registered if an ATAPI command times out during the boot sequence.
PR: i386/51421
Reviewed by: roberto
Approved by: re (rwatson)
MFC after: 1 week
Diffstat (limited to 'sys/dev/ata/atapi-cam.c')
| -rw-r--r-- | sys/dev/ata/atapi-cam.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/dev/ata/atapi-cam.c b/sys/dev/ata/atapi-cam.c index 81c10fc..2a3f787 100644 --- a/sys/dev/ata/atapi-cam.c +++ b/sys/dev/ata/atapi-cam.c @@ -167,7 +167,14 @@ atapi_cam_detach_bus(struct ata_channel *ata_ch) void atapi_cam_reinit_bus(struct ata_channel *ata_ch) { struct atapi_xpt_softc *scp = get_softc(ata_ch); - reinit_bus(scp, RESET); + + /* + * scp might be null if the bus is being reinitialised during + * the boot-up sequence, before the ATAPI bus is registered. + */ + + if (scp != NULL) + reinit_bus(scp, RESET); } static void |
