Fixed the case where two or more cores share the same cpufreq settings.

If the cpufreq directory is a symlink, that that cpu shares it settings
with another cpu.  In that case, skip this cpu.

1 files changed, 10 insertions, 5 deletions

diff --git a/pm/sleep.d/94cpufreq b/pm/sleep.d/94cpufreq
index 9157fb4..cfb0c60 100755
--- a/pm/sleep.d/94cpufreq
+++ b/pm/sleep.d/94cpufreq
@@ -7,12 +7,17 @@
 hibernate_cpufreq()
 {
 	( cd /sys/devices/system/cpu/
-	for x in cpu[0-9]*/cpufreq/scaling_governor ; do
-		[ -f "$x" ] || continue
+	for x in cpu[0-9]*; do
+		# if cpufreq is a symlink, it is handled by another cpu. Skip.
+		[ -L "$x/cpufreq" ] && continue
+		gov="$x/cpufreq/scaling_governor"
+		# if we do not have a scaling_governor file, skip.
+		[ -f "$gov" ] || continue
+		# if our temporary governor is not available, skip.
 		grep -q "$TEMPORARY_CPUFREQ_GOVERNOR" \
-			"${x%/*}/scaling_available_governors" || continue
-		savestate "${x%%/*}_governor" $(cat "$x")
-		echo "$TEMPORARY_CPUFREQ_GOVERNOR" > "$x"
+			"$x/cpufreq/scaling_available_governors" || continue
+		savestate "${x}_governor" $(cat "$gov")
+		echo "$TEMPORARY_CPUFREQ_GOVERNOR" > "$gov"
 	done )
 }