fix qdev_print_devinfo()
snprintf returns number of bytes needed for the output, not the number of bytes actually written. Thus the math is wrong ... Spotted by Markus Armbruster. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
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hw/qdev.c
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hw/qdev.c
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@ -108,15 +108,23 @@ DeviceState *qdev_create(BusState *bus, const char *name)
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static int qdev_print_devinfo(DeviceInfo *info, char *dest, int len)
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{
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int pos = 0;
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int ret;
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pos += snprintf(dest+pos, len-pos, "name \"%s\", bus %s",
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ret = snprintf(dest+pos, len-pos, "name \"%s\", bus %s",
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info->name, info->bus_info->name);
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if (info->alias)
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pos += snprintf(dest+pos, len-pos, ", alias \"%s\"", info->alias);
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if (info->desc)
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pos += snprintf(dest+pos, len-pos, ", desc \"%s\"", info->desc);
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if (info->no_user)
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pos += snprintf(dest+pos, len-pos, ", no-user");
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pos += MIN(len-pos,ret);
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if (info->alias) {
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ret = snprintf(dest+pos, len-pos, ", alias \"%s\"", info->alias);
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pos += MIN(len-pos,ret);
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}
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if (info->desc) {
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ret = snprintf(dest+pos, len-pos, ", desc \"%s\"", info->desc);
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pos += MIN(len-pos,ret);
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}
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if (info->no_user) {
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ret = snprintf(dest+pos, len-pos, ", no-user");
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pos += MIN(len-pos,ret);
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}
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return pos;
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}
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