[PATCH 4.17 044/324] drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hoan Tran <hoan.tran@xxxxxxxxxxxxxxxxxxx>

[ Upstream commit a45fc268db20ecd859bb61e25045912b3194b5e6 ]

This patch fixes the below parser error of the IOB SLOW PMU.

        # perf stat -a -e iob-slow0/cycle-count/ sleep 1
        evenf syntax error: 'iob-slow0/cycle-count/'
                                 \___ parser error

It replaces the "-" character by "_" character inside the PMU name.

Signed-off-by: Hoan Tran <hoan.tran@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/perf/xgene_pmu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1463,7 +1463,7 @@ static char *xgene_pmu_dev_name(struct d
 	case PMU_TYPE_IOB:
 		return devm_kasprintf(dev, GFP_KERNEL, "iob%d", id);
 	case PMU_TYPE_IOB_SLOW:
-		return devm_kasprintf(dev, GFP_KERNEL, "iob-slow%d", id);
+		return devm_kasprintf(dev, GFP_KERNEL, "iob_slow%d", id);
 	case PMU_TYPE_MCB:
 		return devm_kasprintf(dev, GFP_KERNEL, "mcb%d", id);
 	case PMU_TYPE_MC: