coresight: ultrasoc-smb: Fix uninitialized before use buf_hw_base

[platform/kernel/linux-starfive.git] / drivers / hwtracing / coresight / ultrasoc-smb.c

diff --git a/drivers/hwtracing/coresight/ultrasoc-smb.c b/drivers/hwtracing/coresight/ultrasoc-smb.c
index 2f2aba9..6e32d31 100644 (file)
--- a/drivers/hwtracing/coresight/ultrasoc-smb.c
+++ b/drivers/hwtracing/coresight/ultrasoc-smb.c
@@ -477,7 +477,6 @@ static int smb_init_data_buffer(struct platform_device *pdev,
 static void smb_init_hw(struct smb_drv_data *drvdata)
 {
        smb_disable_hw(drvdata);
-       smb_reset_buffer(drvdata);
 
        writel(SMB_LB_CFG_LO_DEFAULT, drvdata->base + SMB_LB_CFG_LO_REG);
        writel(SMB_LB_CFG_HI_DEFAULT, drvdata->base + SMB_LB_CFG_HI_REG);
@@ -587,6 +586,7 @@ static int smb_probe(struct platform_device *pdev)
        if (ret)
                return ret;
 
+       smb_reset_buffer(drvdata);
        platform_set_drvdata(pdev, drvdata);
        spin_lock_init(&drvdata->spinlock);
        drvdata->pid = -1;