[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, 2 deletions

diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index c6e59f84c3ae..3077878ed4f0 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1363,6 +1363,8 @@ static void rose_info_stop(struct seq_file *seq, void *v)
 
 static int rose_info_show(struct seq_file *seq, void *v)
 {
+        char buf[11];
+
         if (v == SEQ_START_TOKEN)
                 seq_puts(seq, 
                          "dest_addr  dest_call src_addr   src_call  dev   lci neigh st vs vr va   t  t1  t2  t3  hb    idle Snd-Q Rcv-Q inode\n");
@@ -1380,12 +1382,12 @@ static int rose_info_show(struct seq_file *seq, void *v)
                 
                 seq_printf(seq, "%-10s %-9s ",
                         rose2asc(&rose->dest_addr),
-                        ax2asc(&rose->dest_call));
+                        ax2asc(buf, &rose->dest_call));
 
                 if (ax25cmp(&rose->source_call, &null_ax25_address) == 0)
                         callsign = "??????-?";
                 else
-                        callsign = ax2asc(&rose->source_call);
+                        callsign = ax2asc(buf, &rose->source_call);
 
                 seq_printf(seq,
                            "%-10s %-9s %-5s %3.3X %05d  %d  %d  %d  %d %3lu %3lu %3lu %3lu %3lu %3lu/%03lu %5d %5d %ld\n",