When coping sockaddr in ip6_mc_msfget(), the time of copies
depends on the minimum value between sl_count and gf_numsrc.
Using min() here is very semantic.
Signed-off-by: Li Zetao <lizetao1@xxxxxxxxxx>
---
net/ipv6/mcast.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 7ba01d8cfbae..b244dbf61d5f 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -586,7 +586,8 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
const struct in6_addr *group;
struct ipv6_mc_socklist *pmc;
struct ip6_sf_socklist *psl;
- int i, count, copycount;
+ unsigned int count;
+ int i, copycount;
group = &((struct sockaddr_in6 *)&gsf->gf_group)->sin6_addr;
@@ -610,7 +611,7 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
psl = sock_dereference(pmc->sflist, sk);
count = psl ? psl->sl_count : 0;
- copycount = count < gsf->gf_numsrc ? count : gsf->gf_numsrc;
+ copycount = min(count, gsf->gf_numsrc);
gsf->gf_numsrc = count;
for (i = 0; i < copycount; i++) {
struct sockaddr_in6 *psin6;
--
2.34.1
