[AX25]: Make ax2asc thread-proof

Ax2asc was still using a static buffer for all invocations which isn't
exactly SMP-safe.  Change ax2asc to take an additional result buffer as
the argument.  Change all callers to provide such a buffer.

Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 4b53de982114..f4578c759ffc 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1261,6 +1261,7 @@ static int nr_info_show(struct seq_file *seq, void *v)
         struct net_device *dev;
         struct nr_sock *nr;
         const char *devname;
+        char buf[11];
 
         if (v == SEQ_START_TOKEN)
                 seq_puts(seq,
@@ -1276,11 +1277,11 @@ static int nr_info_show(struct seq_file *seq, void *v)
                 else
                         devname = dev->name;
 
-                seq_printf(seq, "%-9s ", ax2asc(&nr->user_addr));
-                seq_printf(seq, "%-9s ", ax2asc(&nr->dest_addr));
+                seq_printf(seq, "%-9s ", ax2asc(buf, &nr->user_addr));
+                seq_printf(seq, "%-9s ", ax2asc(buf, &nr->dest_addr));
                 seq_printf(seq, 
 "%-9s %-3s  %02X/%02X %02X/%02X %2d %3d %3d %3d %3lu/%03lu %2lu/%02lu %3lu/%03lu %3lu/%03lu %2d/%02d %3d %5d %5d %ld\n",
-                        ax2asc(&nr->source_addr),
+                        ax2asc(buf, &nr->source_addr),
                         devname,
                         nr->my_index,
                         nr->my_id,