Documentation/watchdog: close the fd when cmdline arg given
in the watchdog test code, the ioctl is performed on the watchdog device and just doing exit(0) so we leak a filedescripor. Signed-off-by: NDevendra Naga <devendra.aaru@gmail.com> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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