Date: Mon, 6 Jun 2011 13:12:56 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r222750 - head/sys/kern Message-ID: <201106061312.p56DCuqi032418@svn.freebsd.org>
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Author: jhb Date: Mon Jun 6 13:12:56 2011 New Revision: 222750 URL: http://svn.freebsd.org/changeset/base/222750 Log: Clear the device_t pointer in 'struct resource' when releasing a device as otherwise the sysctl to export rman info can dereference a stale pointer. PR: kern/115371 Submitted by: Arthur Hartwig MFC after: 1 week Modified: head/sys/kern/subr_rman.c Modified: head/sys/kern/subr_rman.c ============================================================================== --- head/sys/kern/subr_rman.c Mon Jun 6 12:55:19 2011 (r222749) +++ head/sys/kern/subr_rman.c Mon Jun 6 13:12:56 2011 (r222750) @@ -839,6 +839,7 @@ int_rman_release_resource(struct rman *r * without freeing anything. */ r->r_flags &= ~RF_ALLOCATED; + r->r_dev = NULL; return 0; }
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