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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2015-04-05 14:06:29 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2015-04-05 22:56:30 +0200 |
| commit | b832da56024b33e6c7f06f766c59d90e4f377a9b (patch) | |
| tree | 7536e2f5b457d8626a5d242a82bffe4f31fd0421 /drivers/hid/hid-logitech-hidpp.c | |
| parent | 9188dbaed68a4b23dc96eba165265c08caa7dc2a (diff) | |
| download | lwn-b832da56024b33e6c7f06f766c59d90e4f377a9b.tar.gz lwn-b832da56024b33e6c7f06f766c59d90e4f377a9b.zip | |
HID: logitech-hidpp: fix error return code
Return a negative error code on failure.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-logitech-hidpp.c')
| -rw-r--r-- | drivers/hid/hid-logitech-hidpp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 8e9cb25f45cb..b3cf6fd4be96 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -1220,6 +1220,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) connected = hidpp_is_connected(hidpp); if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) { if (!connected) { + ret = -ENODEV; hid_err(hdev, "Device not connected"); hid_device_io_stop(hdev); goto hid_parse_fail; |