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-rw-r--r--drivers/hwtracing/coresight/coresight-stm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 49e0f1b925a5..d397849c2c6a 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -419,10 +419,10 @@ static ssize_t stm_generic_packet(struct stm_data *stm_data,
struct stm_drvdata, stm);
if (!(drvdata && local_read(&drvdata->mode)))
- return 0;
+ return -EACCES;
if (channel >= drvdata->numsp)
- return 0;
+ return -EINVAL;
ch_addr = (unsigned long)stm_channel_addr(drvdata, channel);