diff options
Diffstat (limited to 'drivers/dma/dmatest.c')
| -rw-r--r-- | drivers/dma/dmatest.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 323822372b4c..7480fc104209 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -1240,15 +1240,14 @@ static int dmatest_chan_set(const char *val, const struct kernel_param *kp) add_threaded_test(info); /* Check if channel was added successfully */ - dtc = list_last_entry(&info->channels, struct dmatest_chan, node); - - if (dtc->chan) { + if (!list_empty(&info->channels)) { /* * if new channel was not successfully added, revert the * "test_channel" string to the name of the last successfully * added channel. exception for when users issues empty string * to channel parameter. */ + dtc = list_last_entry(&info->channels, struct dmatest_chan, node); if ((strcmp(dma_chan_name(dtc->chan), strim(test_channel)) != 0) && (strcmp("", strim(test_channel)) != 0)) { ret = -EINVAL; |