we need to make sure that only the first do_signal() to be handled
on the way out syscall will bother with syscall restarts; additionally,
the check on the "signal has user handler" path had been wrong -
compare with restart prevention in sigreturn()...
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
arch/frv/kernel/signal.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index ad74e2e..c2d331e 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -446,7 +446,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
int ret;
/* Are we from a system call? */
- if (in_syscall(__frame)) {
+ if (__frame->syscallno != -1) {
/* If so, check system call restarting.. */
switch (__frame->gr8) {
case -ERESTART_RESTARTBLOCK:
@@ -465,6 +465,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
__frame->gr8 = __frame->orig_gr8;
__frame->pc -= 4;
}
+ __frame->syscallno = -1;
}
/* Set up the stack frame */
@@ -551,6 +552,7 @@ no_signal:
__frame->pc -= 4;
break;
}
+ __frame->syscallno = -1;
}
/* if there's no signal to deliver, we just put the saved sigmask
--
1.5.6.5
--
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