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sd-device-monitor: fix subsystem filter

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This fixes a bug introduced by 759d9f3f8d.

Fixes #10882.
This commit is contained in:
Yu Watanabe
2018-11-23 01:24:34 +09:00
parent 03b35f8775
commit 65fe9c319f
1 changed files with 1 additions and 2 deletions
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3
src/libsystemd/sd-device/device-monitor.c
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@@ -648,13 +648,12 @@ _public_ int sd_device_monitor_filter_update(sd_device_monitor *m) {
/* jump if subsystem does not match */
bpf_jmp(ins, &i, BPF_JMP|BPF_JEQ|BPF_K, hash, 0, 1);
} else {
hash = string_hash32(devtype);
/* jump if subsystem does not match */
bpf_jmp(ins, &i, BPF_JMP|BPF_JEQ|BPF_K, hash, 0, 3);
/* load device devtype value in A */
bpf_stmt(ins, &i, BPF_LD|BPF_W|BPF_ABS, offsetof(monitor_netlink_header, filter_devtype_hash));
/* jump if value does not match */
hash = string_hash32(devtype);
bpf_jmp(ins, &i, BPF_JMP|BPF_JEQ|BPF_K, hash, 0, 1);
}