208d02fd5d
On Linux, the `kmalloc()` family of functions returns a special value if the size of the allocation is zero. This macro verifies if the pointer is NULL (the allocation failed) or the size is 0 (the allocation was not performed AFAIU). This special value can be passed to `kfree()`. On FreeBSD, our `malloc(9)` functions don't return a special value for 0-size allocations. Therefore we can simply compare the result against NULL. Reviewed by: manu Approved by: manu Differential Revision: https://reviews.freebsd.org/D37367 |
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