Fix error message when zfs module are already unloaded
Using zfs-sh -u on linux will fail with inaccurate message when the zfs modules are already unloaded. Deal with the case where a module is already unloaded; its USE_COUNT will be the empty string Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Adam Moss <c@yotes.com> Closes #11627
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@ -198,7 +198,7 @@ unload_modules_linux() {
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if [ "$USE_COUNT" = "0" ] ; then
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if [ "$USE_COUNT" = "0" ] ; then
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unload_module_linux "$KMOD" || return 1
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unload_module_linux "$KMOD" || return 1
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else
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elif [ "$USE_COUNT" != "" ] ; then
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echo "Module ${NAME} is still in use!"
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echo "Module ${NAME} is still in use!"
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return 1
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return 1
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fi
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fi
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