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path: root/drivers/platform/surface/surface_dtx.c
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Diffstat (limited to 'drivers/platform/surface/surface_dtx.c')
-rw-r--r--drivers/platform/surface/surface_dtx.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/platform/surface/surface_dtx.c b/drivers/platform/surface/surface_dtx.c
index 63ce587e79e3..5d9b758a99bb 100644
--- a/drivers/platform/surface/surface_dtx.c
+++ b/drivers/platform/surface/surface_dtx.c
@@ -527,20 +527,14 @@ static __poll_t surface_dtx_poll(struct file *file, struct poll_table_struct *pt
struct sdtx_client *client = file->private_data;
__poll_t events = 0;
- if (down_read_killable(&client->ddev->lock))
- return -ERESTARTSYS;
-
- if (test_bit(SDTX_DEVICE_SHUTDOWN_BIT, &client->ddev->flags)) {
- up_read(&client->ddev->lock);
+ if (test_bit(SDTX_DEVICE_SHUTDOWN_BIT, &client->ddev->flags))
return EPOLLHUP | EPOLLERR;
- }
poll_wait(file, &client->ddev->waitq, pt);
if (!kfifo_is_empty(&client->buffer))
events |= EPOLLIN | EPOLLRDNORM;
- up_read(&client->ddev->lock);
return events;
}