X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=kernel%2Ftime%2Ftimekeeping_debug.c;h=107310a6f36f43a47300c46a4bd3b51a6b5b70fa;hb=a4f8f6667f099036c88f231dcad4cf233652c824;hp=f6bd65236712b218fe89c2bee83b8e56ca1bf89e;hpb=b2d1965dcea148100ffc4e7199470bf5fad13871;p=cascardo%2Flinux.git

diff --git a/kernel/time/timekeeping_debug.c b/kernel/time/timekeeping_debug.c
index f6bd65236712..107310a6f36f 100644
--- a/kernel/time/timekeeping_debug.c
+++ b/kernel/time/timekeeping_debug.c
@@ -23,7 +23,9 @@
 
 #include "timekeeping_internal.h"
 
-static unsigned int sleep_time_bin[32] = {0};
+#define NUM_BINS 32
+
+static unsigned int sleep_time_bin[NUM_BINS] = {0};
 
 static int tk_debug_show_sleep_time(struct seq_file *s, void *data)
 {
@@ -69,6 +71,9 @@ late_initcall(tk_debug_sleep_time_init);
 
 void tk_debug_account_sleep_time(struct timespec64 *t)
 {
-	sleep_time_bin[fls(t->tv_sec)]++;
+	/* Cap bin index so we don't overflow the array */
+	int bin = min(fls(t->tv_sec), NUM_BINS-1);
+
+	sleep_time_bin[bin]++;
 }