media: dvb-frontends: tda10048: Fix integer overflow

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[ Upstream commit 1aa1329a67 ]

state->xtal_hz can be up to 16M, so it can overflow a 32 bit integer
when multiplied by pll_mfactor.

Create a new 64 bit variable to hold the calculations.

Link: https://lore.kernel.org/linux-media/20240429-fix-cocci-v3-25-3c4865f5a4b0@chromium.org
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ricardo Ribalda 2024-04-29 16:05:04 +01:00 • committed by Greg Kroah-Hartman

parent 1aa04c84a3

commit 1663e2474e

1 changed files with 6 additions and 3 deletions

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drivers/media/dvb-frontends/tda10048.c

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