Hello Matthias Schwarzott,
The patch 3e54a1697ace: "[media] si2165: Add demod driver for DVB-T
only" from Jul 22, 2014, leads to the following static checker
warning:
drivers/media/dvb-frontends/si2165.c:329 si2165_wait_init_done()
warn: signedness bug returning '(-22)'
drivers/media/dvb-frontends/si2165.c
315 static bool si2165_wait_init_done(struct si2165_state *state)
316 {
317 int ret = -EINVAL;
318 u8 val = 0;
319 int i;
320
321 for (i = 0; i < 3; ++i) {
322 si2165_readreg8(state, 0x0054, &val);
323 if (val == 0x01)
324 return 0;
This is the success path?
325 usleep_range(1000, 50000);
326 }
327 dev_err(&state->i2c->dev, "%s: init_done was not set\n",
328 KBUILD_MODNAME);
329 return ret;
-EINVAL becomes 1 when casted to bool.
330 }
regards,
dan carpenter
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