fs/signalfd: fix build error for BUS_MCEERR_AR

Fix build error in fs/signalfd.c by using same method that is used in
kernel/signal.c: separate blocks for different signal si_code values.

./fs/signalfd.c: error: 'BUS_MCEERR_AR' undeclared (first use in this function)

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

1 files changed, 12 insertions, 3 deletions

diff --git a/fs/signalfd.c b/fs/signalfd.c
index 9990957264e3..76bf9cc62074 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -118,13 +118,22 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo,
                 err |= __put_user(kinfo->si_trapno, &uinfo->ssi_trapno);
 #endif
 #ifdef BUS_MCEERR_AO
-                /* 
+                /*
+                 * Other callers might not initialize the si_lsb field,
+                 * so check explicitly for the right codes here.
+                 */
+                if (kinfo->si_signo == SIGBUS &&
+                     kinfo->si_code == BUS_MCEERR_AO)
+                        err |= __put_user((short) kinfo->si_addr_lsb,
+                                          &uinfo->ssi_addr_lsb);
+#endif
+#ifdef BUS_MCEERR_AR
+                /*
                  * Other callers might not initialize the si_lsb field,
                  * so check explicitly for the right codes here.
                  */
                 if (kinfo->si_signo == SIGBUS &&
-                    (kinfo->si_code == BUS_MCEERR_AR ||
-                     kinfo->si_code == BUS_MCEERR_AO))
+                    kinfo->si_code == BUS_MCEERR_AR)
                         err |= __put_user((short) kinfo->si_addr_lsb,
                                           &uinfo->ssi_addr_lsb);
 #endif