diff options
Diffstat (limited to 'src/os/exec/exec.go')
| -rw-r--r-- | src/os/exec/exec.go | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/os/exec/exec.go b/src/os/exec/exec.go index 30fd64a4b1..424b49cf06 100644 --- a/src/os/exec/exec.go +++ b/src/os/exec/exec.go @@ -404,11 +404,14 @@ func (c *Cmd) Start() error { c.closeDescriptors(c.closeAfterStart) - c.errch = make(chan error, len(c.goroutine)) - for _, fn := range c.goroutine { - go func(fn func() error) { - c.errch <- fn() - }(fn) + // Don't allocate the channel unless there are goroutines to fire. + if len(c.goroutine) > 0 { + c.errch = make(chan error, len(c.goroutine)) + for _, fn := range c.goroutine { + go func(fn func() error) { + c.errch <- fn() + }(fn) + } } if c.ctx != nil { |