[sysprof] Unconditionally fall back to software if opening hardware counters fails

[Søren Sandmann Pedersen <ssp src gnome org>]

commit 3e4921b92dbf40a5e8412539898f22b6eacc3816
Author: Søren Sandmann Pedersen <sandmann daimi au dk>
Date:   Mon Feb 1 14:02:41 2010 -0500

    Unconditionally fall back to software if opening hardware counters fails
    
    If hardware counters are not available, fall back to SW regardless of
    why the hardware counters aren't available. The error code can be
    either ENOTSUPP or ENODEV depending on CPU type, so it's simpler to
    just retry in all cases, and only fail if the software fallback
    failed.

 collector.c |   13 +++++--------
 1 files changed, 5 insertions(+), 8 deletions(-)
---
diff --git a/collector.c b/collector.c
index 6f5abe2..b39fbc0 100644
--- a/collector.c
+++ b/collector.c
@@ -360,14 +360,11 @@ counter_new (Collector  *collector,
     
     if ((fd = sysprof_perf_counter_open (&attr, -1, cpu, -1,  0)) < 0)
     {
-	if (errno == ENODEV)
-	{
-	    attr.type = PERF_TYPE_SOFTWARE;
-	    attr.config = PERF_COUNT_SW_CPU_CLOCK;
-	    attr.sample_period = 1000000;
-
-	    fd = sysprof_perf_counter_open (&attr, -1, cpu, -1, 0);
-	}
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.sample_period = 1000000;
+	
+	fd = sysprof_perf_counter_open (&attr, -1, cpu, -1, 0);
     }
     
     if (fd < 0)