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(cam_rescan): Do not reference ccb->ccb_h.path in CAM_DEBUG call before

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it is initialized; use path instead.

This change fixes a panic when using atapicam in conjunction with CAMDEBUG,
which has been described under kern/103602.

Thanks to Josh Carroll <josh.carroll@gmail.com> for providing the traces
that allowed identifying this problem.

PR:		kern/103602
MFC after:	1 week
This commit is contained in:
Thomas Quinot 2007-02-27 09:00:51 +00:00
parent 65835cf341
commit 4647ebfc01
1 changed files with 2 additions and 2 deletions
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4
sys/dev/ata/atapi-cam.c
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@ -1,5 +1,5 @@
/*-
* Copyright (c) 2001-2003 Thomas Quinot <thomas@cuivre.fr.eu.org>
* Copyright (c) 2001-2007 Thomas Quinot <thomas@cuivre.fr.eu.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -807,7 +807,7 @@ cam_rescan(struct cam_sim *sim)
return;
}
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("Rescanning ATAPI bus.\n"));
CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Rescanning ATAPI bus.\n"));
xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
ccb->ccb_h.func_code = XPT_SCAN_BUS;
ccb->ccb_h.cbfcnp = cam_rescan_callback;