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-rw-r--r--src/drivers/net/iphone.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/drivers/net/iphone.c b/src/drivers/net/iphone.c
index 7d0eb4b6..bbac527b 100644
--- a/src/drivers/net/iphone.c
+++ b/src/drivers/net/iphone.c
@@ -1304,7 +1304,9 @@ ipair_tx ( struct ipair *ipair, const char *fmt, ... ) {
memset ( hdr, 0, sizeof ( *hdr ) );
hdr->len = htonl ( len );
msg = iob_put ( iobuf, len );
+ va_start ( args, fmt );
vsnprintf ( msg, len, fmt, args );
+ va_end ( args );
DBGC2 ( ipair, "IPAIR %p transmitting:\n%s\n", ipair, msg );
/* Transmit message */