qdev: Add a 'free' method to disassociate chardev from qdev device
When a device is removed, remove the association with a chardev, if any, so that the chardev can be re-used later for other devices. Reported-by: Qunfang Zhang <qzhang@redhat.com> Fix-suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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@ -680,6 +680,16 @@ static int parse_chr(DeviceState *dev, Property *prop, const char *str)
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return 0;
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}
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static void free_chr(DeviceState *dev, Property *prop)
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{
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CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
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if (*ptr) {
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qemu_chr_add_handlers(*ptr, NULL, NULL, NULL, NULL);
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}
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}
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static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
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{
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CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
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@ -699,6 +709,7 @@ PropertyInfo qdev_prop_chr = {
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.print = print_chr,
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.get = get_generic,
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.set = set_generic,
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.free = free_chr,
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};
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/* --- netdev device --- */
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