From: "Gabriel L. Somlo" <[email protected]> Enforce a single assignment of data for each distinct selector key.
Signed-off-by: Gabriel Somlo <[email protected]> Reviewed-by: Laszlo Ersek <[email protected]> Signed-off-by: Gerd Hoffmann <[email protected]> --- hw/nvram/fw_cfg.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index d2a4347..0c0e15e 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -423,6 +423,7 @@ static void fw_cfg_add_bytes_read_callback(FWCfgState *s, uint16_t key, key &= FW_CFG_ENTRY_MASK; assert(key < FW_CFG_MAX_ENTRY && len < UINT32_MAX); + assert(s->entries[arch][key].data == NULL); /* avoid key conflict */ s->entries[arch][key].data = data; s->entries[arch][key].len = (uint32_t)len; -- 1.8.3.1
