wpan-phy: use snprintf to limit the amount of chars written
Use snprintf to limit the amount of chars put in the buffer for attr -> show.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
diff --git a/net/ieee802154/wpan-class.c b/net/ieee802154/wpan-class.c
index a10ae5b..68ccde6 100644
--- a/net/ieee802154/wpan-class.c
+++ b/net/ieee802154/wpan-class.c
@@ -30,7 +30,7 @@
int ret; \
\
mutex_lock(&phy->pib_lock); \
- ret = sprintf(buf, format_string "\n", args); \
+ ret = snprintf(buf, PAGE_SIZE, format_string "\n", args); \
mutex_unlock(&phy->pib_lock); \
return ret; \
}