um: Fix get_signal() usage

If get_signal() returns us a signal to post
we must not call it again, otherwise the already
posted signal will be overridden.
Before commit a610d6e672d this was the case as we stopped
the while after a successful handle_signal().

Cc: <stable@vger.kernel.org> # 3.10-
Fixes: a610d6e672d ("pull clearing RESTORE_SIGMASK into block_sigmask()")
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 57acbd67d85d..fc8be0e3a4ff 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -69,7 +69,7 @@ void do_signal(struct pt_regs *regs)
         struct ksignal ksig;
         int handled_sig = 0;
 
-        while (get_signal(&ksig)) {
+        if (get_signal(&ksig)) {
                 handled_sig = 1;
                 /* Whee!  Actually deliver the signal.  */
                 handle_signal(&ksig, regs);