diff options
Diffstat (limited to 'drivers/hwtracing/coresight/ultrasoc-smb.c')
| -rw-r--r-- | drivers/hwtracing/coresight/ultrasoc-smb.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/hwtracing/coresight/ultrasoc-smb.c b/drivers/hwtracing/coresight/ultrasoc-smb.c index bef633960173..a92c5b750f81 100644 --- a/drivers/hwtracing/coresight/ultrasoc-smb.c +++ b/drivers/hwtracing/coresight/ultrasoc-smb.c @@ -103,7 +103,7 @@ static int smb_open(struct inode *inode, struct file *file) if (drvdata->reading) return -EBUSY; - if (atomic_read(&drvdata->csdev->refcnt)) + if (drvdata->csdev->refcnt) return -EBUSY; smb_update_data_size(drvdata); @@ -271,7 +271,7 @@ static int smb_enable(struct coresight_device *csdev, enum cs_mode mode, if (ret) return ret; - atomic_inc(&csdev->refcnt); + csdev->refcnt++; dev_dbg(&csdev->dev, "Ultrasoc SMB enabled\n"); return ret; @@ -286,7 +286,8 @@ static int smb_disable(struct coresight_device *csdev) if (drvdata->reading) return -EBUSY; - if (atomic_dec_return(&csdev->refcnt)) + csdev->refcnt--; + if (csdev->refcnt) return -EBUSY; /* Complain if we (somehow) got out of sync */ @@ -381,7 +382,7 @@ static unsigned long smb_update_buffer(struct coresight_device *csdev, guard(spinlock)(&drvdata->spinlock); /* Don't do anything if another tracer is using this sink. */ - if (atomic_read(&csdev->refcnt) != 1) + if (csdev->refcnt != 1) return 0; smb_disable_hw(drvdata); |