[PATCH drivers/perf 4/4] drivers/perf: fixing coding style issues

[Tian Tao]

  no functional changes.

  Fix checkpatch error:
  ERROR: do not use assignment in if condition
  #210: FILE: arm_pmu_platform.c:210:
  + if (node && (of_id = of_match_node(of_table, pdev->dev.of_node))) {

Signed-off-by: Tian Tao <tiantao6 at hisilicon.com>
Signed-off-by: Junhao He <hejunhao2 at hisilicon.com>
Signed-off-by: Qi Liu <liuqi115 at huawei.com>
---
 drivers/perf/arm_pmu_platform.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 933bd84..11b47c6 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -191,7 +191,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
 			 const struct of_device_id *of_table,
 			 const struct pmu_probe_info *probe_table)
 {
-	const struct of_device_id *of_id;
+	const struct of_device_id *of_id = NULL;
 	armpmu_init_fn init_fn;
 	struct device_node *node = pdev->dev.of_node;
 	struct arm_pmu *pmu;
@@ -207,11 +207,13 @@ int arm_pmu_device_probe(struct platform_device *pdev,
 	if (ret)
 		goto out_free;
 
-	if (node && (of_id = of_match_node(of_table, pdev->dev.of_node))) {
+	if (node)
+		of_id = of_match_node(of_table, node);
+
+	if (of_id) {
 		init_fn = of_id->data;
 
-		pmu->secure_access = of_property_read_bool(pdev->dev.of_node,
-							   "secure-reg-access");
+		pmu->secure_access = of_property_read_bool(node, "secure-reg-access");
 
 		/* arm64 systems boot only as non-secure */
 		if (IS_ENABLED(CONFIG_ARM64) && pmu->secure_access) {
-- 
2.7.4