microblaze: ->restart_block.fn needs to be reset on rt_sigreturn

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index 99b970866b29..fbdb02641821 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -98,6 +98,9 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
         sigset_t set;
         int rval;
 
+        /* Always make any pending restarted system calls return -EINTR */
+        current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
         if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
                 goto badframe;