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| author | Matthias Schwarzott <zzam@gentoo.org> | 2016-07-26 08:53:40 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-09-22 17:53:22 +0200 |
| commit | 2df9dda07f56c285564ce97ca76a94e70a50df5e (patch) | |
| tree | cffc4cff865a2217a5edf3ee06239fe3bb2b0f0c /drivers/media/dvb-frontends/au8522_decoder.c | |
| parent | [media] rcar-vin: add R-Car gen2 fallback compatibility string (diff) | |
| download | linux-2df9dda07f56c285564ce97ca76a94e70a50df5e.tar.xz linux-2df9dda07f56c285564ce97ca76a94e70a50df5e.zip | |
[media] si2165: avoid division by zero
When si2165_init fails, the clk values in state are still at zero.
But the dvb-core ignores the return value of init will call tune
afterwards.
This will trigger a division by zero when tuning.
At least check for the variables to be non-zero before dividing.
This happened for a system with WinTV HVR-4400 PCIe-card after suspend-to-disk.
Do suspend-to-disk without accessing the DVB device before.
After wakeup try to tune.
si2165_init fails at checking the chip_mode and aborts.
Then si2165_set_if_freq_shift will fail with div-by-zero.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/dvb-frontends/au8522_decoder.c')
0 files changed, 0 insertions, 0 deletions