Re: [PATCH] Tools: hv: kvp: eliminate 'may be used uninitialized' warning

From: Sasha Levin
Date: Tue Aug 20 2019 - 11:30:18 EST


On Mon, Aug 19, 2019 at 04:44:09PM +0200, Vitaly Kuznetsov wrote:
When building hv_kvp_daemon GCC-8.3 complains:

hv_kvp_daemon.c: In function âkvp_get_ip_info.constpropâ:
hv_kvp_daemon.c:812:30: warning: âip_bufferâ may be used uninitialized in this function [-Wmaybe-uninitialized]
struct hv_kvp_ipaddr_value *ip_buffer;

this seems to be a false positive: we only use ip_buffer when
op == KVP_OP_GET_IP_INFO and it is only unset when op == KVP_OP_ENUMERATE.

Silence the warning by initializing ip_buffer to NULL.

Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>

Queued up for hyperv-fixes, thank you.

--
Thanks,
Sasha