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-rw-r--r--drivers/hid/uhid.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 05ef4b05a63e..b1a477f8260c 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -117,6 +117,13 @@ static ssize_t uhid_char_write(struct file *file, const char __user *buffer,
static unsigned int uhid_char_poll(struct file *file, poll_table *wait)
{
+ struct uhid_device *uhid = file->private_data;
+
+ poll_wait(file, &uhid->waitq, wait);
+
+ if (uhid->head != uhid->tail)
+ return POLLIN | POLLRDNORM;
+
return 0;
}

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