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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2020-11-10 01:14:38 +0900 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2020-12-08 18:08:31 +0100 |
| commit | 45ed35fdc09f1c8dc2462d2ce2e257976c038262 (patch) | |
| tree | e9f5c6e89987c1ca77b1011c0d357e65b72d405b /src/shared | |
| parent | 6b9e8618e5eb11ad66992b5ee5c659fcc634a8be (diff) | |
| download | systemd-45ed35fdc09f1c8dc2462d2ce2e257976c038262.tar.gz | |
ethtool: make ethtool_get_driver() return -ENODATA if ioctl succeeds but driver name is empty
Inspired by #17532.
(cherry picked from commit 861de64e6858bc92b154ad70d1cee41ae5b75835)
Diffstat (limited to 'src/shared')
| -rw-r--r-- | src/shared/ethtool-util.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/shared/ethtool-util.c b/src/shared/ethtool-util.c index 14e91e3e4d..abf76f5f24 100644 --- a/src/shared/ethtool-util.c +++ b/src/shared/ethtool-util.c @@ -170,6 +170,9 @@ int ethtool_get_driver(int *ethtool_fd, const char *ifname, char **ret) { if (r < 0) return -errno; + if (isempty(ecmd.driver)) + return -ENODATA; + d = strdup(ecmd.driver); if (!d) return -ENOMEM; |