um: adjust size of pid_buf

Linux can have pids up to 4*1024*1024.  To handle such huge numbers
pid_buf needs to be larger.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/um/drivers/harddog_user.c b/arch/um/drivers/harddog_user.c
index b56f8e0196a9..84dce3fc590c 100644
--- a/arch/um/drivers/harddog_user.c
+++ b/arch/um/drivers/harddog_user.c
@@ -32,7 +32,7 @@ int start_watchdog(int *in_fd_ret, int *out_fd_ret, char *sock)
 {
         struct dog_data data;
         int in_fds[2], out_fds[2], pid, n, err;
-        char pid_buf[sizeof("nnnnn\0")], c;
+        char pid_buf[sizeof("nnnnnnn\0")], c;
         char *pid_args[] = { "/usr/bin/uml_watchdog", "-pid", pid_buf, NULL };
         char *mconsole_args[] = { "/usr/bin/uml_watchdog", "-mconsole", NULL,
                                   NULL };