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>

diff --git a/arch/um/drivers/harddog_user.c b/arch/um/drivers/harddog_user.c
index b56f8e0..84dce3f 100644 (file)
--- 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;
 {
        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 };
        char *pid_args[] = { "/usr/bin/uml_watchdog", "-pid", pid_buf, NULL };
        char *mconsole_args[] = { "/usr/bin/uml_watchdog", "-mconsole", NULL,
                                  NULL };