scx_nest: fix unitialized value stats counter.

similar issue as sched-ext#3021

==21167== Conditional jump or move depends on uninitialised value(s)
==21167==    at 0x4A2C00A: __printf_buffer (vfprintf-process-arg.c:186)
==21167==    by 0x4A2D787: __vfprintf_internal (vfprintf-internal.c:1543)
==21167==    by 0x4A211F2: printf (printf.c:33)
==21167==    by 0x4004F4E: main (in /home/dcarlier/Contribs/scx/build/scheds/c/scx_nest)
==21167==  Uninitialised value was created by a stack allocation
==21167==    at 0x4003B05: read_stats (in /home/dcarlier/Contribs/scx/build/scheds/c/scx_nest)

Signed-off-by: David Carlier <[email protected]>

Author: devnexen

scheds/c/scx_nest.c

@@ -72,6 +72,7 @@ static void read_stats(struct scx_nest *skel, u64 *stats)
 	u32 idx;
 
 	memset(stats, 0, sizeof(stats[0]) * NEST_STAT(NR));
+	memset(cnts, 0, sizeof(cnts));
 
 	for (idx = 0; idx < NEST_STAT(NR); idx++) {
 		int ret, cpu;