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authorMarcel Holtmann <marcel@holtmann.org>2019-12-04 03:43:55 +0100
committerJiri Kosina <jkosina@suse.cz>2019-12-09 13:53:37 +0100
commitbe54e7461ffdc5809b67d2aeefc1ddc9a91470c7 (patch)
tree33c228a70b8eb463166b266fcbee646ba7869869 /drivers/hid
parent9f3b61dc1dd7b81e99e7ed23776bb64a35f39e1a (diff)
downloadlinux-be54e7461ffdc5809b67d2aeefc1ddc9a91470c7.tar.gz
HID: uhid: Fix returning EPOLLOUT from uhid_char_poll
Always return EPOLLOUT from uhid_char_poll to allow polling /dev/uhid
for writable state.

Fixes: 1f9dec1e0164 ("HID: uhid: allow poll()'ing on uhid devices")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/uhid.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index fa0cc0899827..935c3d0a3b63 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -772,7 +772,7 @@ static __poll_t uhid_char_poll(struct file *file, poll_table *wait)
 	if (uhid->head != uhid->tail)
 		return EPOLLIN | EPOLLRDNORM;
 
-	return 0;
+	return EPOLLOUT | EPOLLWRNORM;
 }
 
 static const struct file_operations uhid_fops = {