[media] ds3000: return error if invalid symbol rate is set (212fa081) · Commits · 戴 / test

Return -EINVAL if ds3000_set_frontend is called with invalid parameters. v1 of the patch series got incorrect subject lines. Signed-off-by:

drivers/media/dvb-frontends/ds3000.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -959,6 +959,15 @@ static int ds3000_set_frontend(struct dvb_frontend *fe)
		/* enable ac coupling */
		ds3000_writereg(state, 0x25, 0x8a);

		if ((c->symbol_rate < ds3000_ops.info.symbol_rate_min) \|\|
		(c->symbol_rate > ds3000_ops.info.symbol_rate_max)) {
		dprintk("%s() symbol_rate %u out of range (%u ... %u)\n",
		__func__, c->symbol_rate,
		ds3000_ops.info.symbol_rate_min,
		ds3000_ops.info.symbol_rate_max);
		return -EINVAL;
		}

		/* enhance symbol rate performance */
		if ((c->symbol_rate / 1000) <= 5000) {
		value = 29777 / (c->symbol_rate / 1000) + 1;