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Groups > linux.kernel > #1244108
| From | David Miller <davem@davemloft.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH net-next v3] BNX2: fix a Null Pointer for stats_blk |
| Date | 2015-10-11 14:00 +0200 |
| Message-ID | <qinsd-7rc-3@gated-at.bofh.it> (permalink) |
| References | <qdTCq-2zg-9@gated-at.bofh.it> <qeh21-2kv-7@gated-at.bofh.it> <qhgj9-iz-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Weidong Wang <wangweidong1@huawei.com> Date: Thu, 8 Oct 2015 18:03:47 +0800 > we have two processes to do: > P1#: ifconfig eth0 down; which will call bnx2_close, then will > , and set Null to stats_blk > P2#: ifconfig eth0; which will call bnx2_get_stats64, it will > use stats_blk. > In one case: > --P1#-- --P2#-- > stats_blk(no null) > bnx2_free_mem > ->bp->stats_blk = NULL > GET_64BIT_NET_STATS > > then it will cause 'NULL Pointer' Problem. > it is as well with 'ethtool -S ethx'. > > Allocate the statistics block at probe time so that this problem is > impossible > > Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Applied, thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH net-next v3] BNX2: fix a Null Pointer for stats_blk Weidong Wang <wangweidong1@huawei.com> - 2015-10-08 12:10 +0200 Re: [PATCH net-next v3] BNX2: fix a Null Pointer for stats_blk David Miller <davem@davemloft.net> - 2015-10-11 14:00 +0200
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