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Message-ID: <20240216160110.2735117-1-k.yankevich@omp.ru> Date: Fri, 16 Feb 2024 19:01:10 +0300 From: Karina Yankevich <k.yankevich@....ru> To: Michael Krufky <mkrufky@...uxtv.org> CC: Karina Yankevich <k.yankevich@....ru>, Mauro Carvalho Chehab <mchehab@...nel.org>, <linux-media@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Sergey Shtylyov <s.shtylyov@....ru>, <lvc-project@...uxtesting.org> Subject: [PATCH] [media] tda18271: add missing result checking of tda18271_lookup_map() tda18271_lookup_map() may return negative error code, but tda18271c2_rf_tracking_filters_correction() doesn't check it as the other callers. Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. Signed-off-by: Karina Yankevich <k.yankevich@....ru> --- drivers/media/tuners/tda18271-fe.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/tuners/tda18271-fe.c b/drivers/media/tuners/tda18271-fe.c index f0371d004b36..ff5b22134414 100644 --- a/drivers/media/tuners/tda18271-fe.c +++ b/drivers/media/tuners/tda18271-fe.c @@ -279,7 +279,9 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, if (approx > 255) approx = 255; - tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt); + ret = tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt); + if (tda_fail(ret)) + goto fail; /* calculate temperature compensation */ rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000; -- 2.25.1
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