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| author | Aleksandr Mishin <[email protected]> | 2024-07-03 18:45:06 +0300 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2024-07-29 20:31:23 +0100 |
| commit | b48aa991758999d4e8f9296c5bbe388f293ef465 (patch) | |
| tree | 327967e7ea9298aabfe0ab6912bf85003004853c /tools/testing/selftests/bpf/progs/test_autoload.c | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
staging: iio: frequency: ad9834: Validate frequency parameter value
In ad9834_write_frequency() clk_get_rate() can return 0. In such case
ad9834_calc_freqreg() call will lead to division by zero. Checking
'if (fout > (clk_freq / 2))' doesn't protect in case of 'fout' is 0.
ad9834_write_frequency() is called from ad9834_write(), where fout is
taken from text buffer, which can contain any value.
Modify parameters checking.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 12b9d5bf76bf ("Staging: IIO: DDS: AD9833 / AD9834 driver")
Suggested-by: Dan Carpenter <[email protected]>
Signed-off-by: Aleksandr Mishin <[email protected]>
Reviewed-by: Dan Carpenter <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions