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| author | Li RongQing <lirongqing@baidu.com> | 2019-03-29 09:18:02 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-03-29 13:41:55 -0700 |
| commit | 3d8830266ffc28c16032b859e38a0252e014b631 (patch) | |
| tree | c09e7bdb15135334481111a1ea485d07cada840c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | c43ac97bac987e56c179598ce3398a95d55067bc (diff) | |
net: ethtool: not call vzalloc for zero sized memory request
NULL or ZERO_SIZE_PTR will be returned for zero sized memory
request, and derefencing them will lead to a segfault
so it is unnecessory to call vzalloc for zero sized memory
request and not call functions which maybe derefence the
NULL allocated memory
this also fixes a possible memory leak if phy_ethtool_get_stats
returns error, memory should be freed before exit
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Wang Li <wangli39@baidu.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions