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cleanup: prevent Go panic on missing driver type

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When running the 'cephcsi' executable without arguments, a Go panic is
reported:

    $ ./_output/cephcsi
    F1026 13:59:04.302740 3409054 cephcsi.go:126] driver type not specified
    goroutine 1 [running]:
    k8s.io/klog/v2.stacks(0xc000010001, 0xc0000520a0, 0x48, 0x9a)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:996 +0xb9
    k8s.io/klog/v2.(*loggingT).output(0x2370360, 0xc000000003, 0x0, 0x0, 0xc000194770, 0x20cb265, 0xa, 0x7e, 0x413500)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:945 +0x191
    k8s.io/klog/v2.(*loggingT).println(0x2370360, 0x3, 0x0, 0x0, 0xc000163e08, 0x1, 0x1)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:699 +0x11a
    k8s.io/klog/v2.Fatalln(...)
    	/go/src/github.com/ceph/ceph-csi/vendor/k8s.io/klog/v2/klog.go:1456
    main.main()
    	/go/src/github.com/ceph/ceph-csi/cmd/cephcsi.go:126 +0xafa

Just logging the error and exiting should be sufficient. This stack-trace
from the Go panic does not add any useful information.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2020-10-26 14:08:55 +01:00 committed by mergify[bot]
parent 7101a6dc8e
commit 79e91fa894
1 changed files with 1 additions and 1 deletions
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2
cmd/cephcsi.go
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@ -123,7 +123,7 @@ func main() {
util.DefaultLog("Driver version: %s and Git version: %s", util.DriverVersion, util.GitCommit) util.DefaultLog("Driver version: %s and Git version: %s", util.DriverVersion, util.GitCommit)
if conf.Vtype == "" { if conf.Vtype == "" {
klog.Fatalln("driver type not specified") logAndExit("driver type not specified")
} }
dname := getDriverName() dname := getDriverName()