Date: Fri, 27 Aug 2010 23:50:14 +0000 (UTC) From: Pyun YongHyeon <yongari@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r211906 - head/sys/dev/e1000 Message-ID: <201008272350.o7RNoEt5011440@svn.freebsd.org>
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Author: yongari Date: Fri Aug 27 23:50:13 2010 New Revision: 211906 URL: http://svn.freebsd.org/changeset/base/211906 Log: Make sure not to access unallocated stats memory. Reviewed by: jfv Modified: head/sys/dev/e1000/if_igb.c Modified: head/sys/dev/e1000/if_igb.c ============================================================================== --- head/sys/dev/e1000/if_igb.c Fri Aug 27 23:24:08 2010 (r211905) +++ head/sys/dev/e1000/if_igb.c Fri Aug 27 23:50:13 2010 (r211906) @@ -509,6 +509,11 @@ igb_attach(device_t dev) adapter->stats = (struct e1000_hw_stats *)malloc(sizeof \ (struct e1000_hw_stats), M_DEVBUF, M_NOWAIT | M_ZERO); + if (adapter->stats == NULL) { + device_printf(dev, "Can not allocate stats memory\n"); + error = ENOMEM; + goto err_late; + } /* ** Start from a known state, this is @@ -4893,7 +4898,8 @@ igb_vf_init_stats(struct adapter *adapte struct e1000_vf_stats *stats; stats = (struct e1000_vf_stats *)adapter->stats; - + if (stats == NULL) + return; stats->last_gprc = E1000_READ_REG(hw, E1000_VFGPRC); stats->last_gorc = E1000_READ_REG(hw, E1000_VFGORC); stats->last_gptc = E1000_READ_REG(hw, E1000_VFGPTC);
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