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-rw-r--r--arch/x86/kernel/cpu/perf_event_p4.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index cb875b1e2e87..424fc8de68e4 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -18,7 +18,7 @@
18struct p4_event_bind { 18struct p4_event_bind {
19 unsigned int opcode; /* Event code and ESCR selector */ 19 unsigned int opcode; /* Event code and ESCR selector */
20 unsigned int escr_msr[2]; /* ESCR MSR for this event */ 20 unsigned int escr_msr[2]; /* ESCR MSR for this event */
21 unsigned char cntr[2][P4_CNTR_LIMIT]; /* counter index (offset), -1 on abscence */ 21 char cntr[2][P4_CNTR_LIMIT]; /* counter index (offset), -1 on abscence */
22}; 22};
23 23
24struct p4_cache_event_bind { 24struct p4_cache_event_bind {
@@ -747,11 +747,11 @@ static int p4_get_escr_idx(unsigned int addr)
747static int p4_next_cntr(int thread, unsigned long *used_mask, 747static int p4_next_cntr(int thread, unsigned long *used_mask,
748 struct p4_event_bind *bind) 748 struct p4_event_bind *bind)
749{ 749{
750 int i = 0, j; 750 int i, j;
751 751
752 for (i = 0; i < P4_CNTR_LIMIT; i++) { 752 for (i = 0; i < P4_CNTR_LIMIT; i++) {
753 j = bind->cntr[thread][i++]; 753 j = bind->cntr[thread][i];
754 if (j == -1 || !test_bit(j, used_mask)) 754 if (j != -1 && !test_bit(j, used_mask))
755 return j; 755 return j;
756 } 756 }
757 757