From db2f24dc240856fb1d78005307f1523b7b3c121b Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Wed, 18 Nov 2015 09:37:15 +0100
Subject: 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>
---
arch/um/kernel/signal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'arch/um/kernel')
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 57acbd6..fc8be0e 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);
--
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