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authorErick Archer <[email protected]>2024-01-19 19:19:09 +0100
committerLinus Walleij <[email protected]>2024-01-28 01:17:26 +0100
commitf6f62a9a931f54607107196c029a8e0386591a71 (patch)
treebb0df7f11805d206e16e0048225bb80f52ea5c8b /tools/perf/scripts/python/stackcollapse.py
parent8714b3414dd6070609fabdd73a70e5f818f77f24 (diff)
pinctrl: pinctrl-zynqmp: Use devm_kcalloc() instead of devm_kzalloc()
As noted in the "Deprecated Interfaces, Language Features, Attributes, and Conventions" documentation [1], size calculations (especially multiplication) should not be performed in memory allocator (or similar) function arguments due to the risk of them overflowing. This could lead to values wrapping around and a smaller allocation being made than the caller was expecting. Using those allocations could lead to linear overflows of heap memory and other misbehaviors. So, use the purpose specific devm_kcalloc() function instead of the argument size * count in the devm_kzalloc() function. Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [1] Link: https://github.com/KSPP/linux/issues/162 Signed-off-by: Erick Archer <[email protected]> Acked-by: Michal Simek <[email protected]> Reviewed-by: Gustavo A. R. Silva <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Linus Walleij <[email protected]>
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