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authorMarcel Holtmann <marcel@holtmann.org>2019-12-04 05:43:55 +0300
committerJiri Kosina <jkosina@suse.cz>2019-12-09 15:53:37 +0300
commitbe54e7461ffdc5809b67d2aeefc1ddc9a91470c7 (patch)
tree33c228a70b8eb463166b266fcbee646ba7869869 /drivers/hid
parent9f3b61dc1dd7b81e99e7ed23776bb64a35f39e1a (diff)
downloadlinux-be54e7461ffdc5809b67d2aeefc1ddc9a91470c7.tar.xz
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 = {