Unverified Commit ee146452 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!10817 media: dvb-frontends: tda10048: Fix integer overflow 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yi Yang <yiyang13@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/KYJI7WMUK6UR5SLLIHM3QVWRXESMDI7C/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAGSNO 
 
Link:https://gitee.com/openeuler/kernel/pulls/10817

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 754486d2 53366093

drivers/media/dvb-frontends/tda10048.c

+6 −3
Original line number Diff line number Diff line
@@ -410,6 +410,7 @@ static int tda10048_set_if(struct dvb_frontend *fe, u32 bw) 
	struct tda10048_config *config = &state->config;

	int i;

	u32 if_freq_khz;

	u64 sample_freq;



	dprintk(1, "%s(bw = %d)\n", __func__, bw);
@@ -451,9 +452,11 @@ static int tda10048_set_if(struct dvb_frontend *fe, u32 bw) 
	dprintk(1, "- pll_pfactor = %d\n", state->pll_pfactor);



	/* Calculate the sample frequency */

	state->sample_freq = state->xtal_hz * (state->pll_mfactor + 45);

	state->sample_freq /= (state->pll_nfactor + 1);

	state->sample_freq /= (state->pll_pfactor + 4);

	sample_freq = state->xtal_hz;

	sample_freq *= state->pll_mfactor + 45;

	do_div(sample_freq, state->pll_nfactor + 1);

	do_div(sample_freq, state->pll_pfactor + 4);

	state->sample_freq = sample_freq;

	dprintk(1, "- sample_freq = %d\n", state->sample_freq);



	/* Update the I/F */