Date: Wed, 29 Jan 2020 22:56:00 +0000 (UTC) From: Vincenzo Maffione <vmaffione@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r357277 - stable/12/sys/dev/netmap Message-ID: <202001292256.00TMu0bo049961@repo.freebsd.org>
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Author: vmaffione Date: Wed Jan 29 22:55:59 2020 New Revision: 357277 URL: https://svnweb.freebsd.org/changeset/base/357277 Log: MFC r357159 netmap_mem_unmap: fix NULL pointer dereference Modified: stable/12/sys/dev/netmap/netmap_mem2.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/netmap/netmap_mem2.c ============================================================================== --- stable/12/sys/dev/netmap/netmap_mem2.c Wed Jan 29 22:48:18 2020 (r357276) +++ stable/12/sys/dev/netmap/netmap_mem2.c Wed Jan 29 22:55:59 2020 (r357277) @@ -1523,11 +1523,12 @@ static int netmap_mem_unmap(struct netmap_obj_pool *p, struct netmap_adapter *na) { int i, lim = p->objtotal; - struct netmap_lut *lut = &na->na_lut; + struct netmap_lut *lut; if (na == NULL || na->pdev == NULL) return 0; + lut = &na->na_lut; #if defined(__FreeBSD__) /* On FreeBSD mapping and unmapping is performed by the txsync * and rxsync routine, packet by packet. */
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