Allow salinfo_decode to detect signals on read

Return -EINTR instead of -ERESTARTSYS when signals are delivered during a blocked read of /proc/sal/*/event. This allows salinfo_decode to detect signals when it is blocked on a read of those files.

Index: linux/arch/ia64/kernel/salinfo.c
=================================--- linux.orig/arch/ia64/kernel/salinfo.c 2005-12-02 13:34:44.753350991 +1100
+++ linux/arch/ia64/kernel/salinfo.c 2005-12-02 13:35:12.055229613 +1100
@@ -293,7 +293,7 @@ retry:
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
if (down_interruptible(&data->sem))
- return -ERESTARTSYS;
+ return -EINTR;
}

n = data->cpu_check;