Hello Mauro Carvalho Chehab,
The patch 269d91f53fe3: "[media] vp702x: comment dead code" from Apr
29, 2015, leads to the following static checker warning:
drivers/media/usb/dvb-usb/dvb-usb-remote.c:128
legacy_dvb_usb_read_remote_control()
error: uninitialized symbol 'state'.
drivers/media/usb/dvb-usb/dvb-usb-remote.c
108 static void legacy_dvb_usb_read_remote_control(struct work_struct *work)
109 {
110 struct dvb_usb_device *d =
111 container_of(work, struct dvb_usb_device,
rc_query_work.work);
112 u32 event;
113 int state;
114
115 /* TODO: need a lock here. We can simply skip checking for the
remote control
116 if we're busy. */
117
118 /* when the parameter has been set to 1 via sysfs while the
driver was running */
119 if (dvb_usb_disable_rc_polling)
120 return;
121
122 if (d->props.rc.legacy.rc_query(d,&event,&state)) {
^^^^^^^^^^^^^^^^^^^^^^^^^
This sometimes returns zero without doing anything like in
vp702x_rc_query().
123 err("error while querying for an remote control
event.");
124 goto schedule;
125 }
126
127
128 switch (state) {
129 case REMOTE_NO_KEY_PRESSED:
130 break;
131 case REMOTE_KEY_PRESSED:
132 deb_rc("key pressed\n");
133 d->last_event = event;
134 case REMOTE_KEY_REPEAT:
135 deb_rc("key repeated\n");
136 input_event(d->input_dev, EV_KEY, event, 1);
137 input_sync(d->input_dev);
138 input_event(d->input_dev, EV_KEY,
d->last_event, 0);
139 input_sync(d->input_dev);
140 break;
141 default:
142 break;
143 }
regards,
dan carpenter
