casaroli commented on code in PR #21330:
URL: https://github.com/apache/nuttx/pull/21330#discussion_r4436805456
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mm/umm_heap/umm_sbrk.c:
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@@ -100,6 +100,13 @@ FAR void *sbrk(intptr_t incr)
/* Convert the increment to multiples of the page size */
pgincr = MM_NPAGES(incr);
Review Comment:
`pgalloc()` takes `unsigned int npages` (include/nuttx/arch.h:840), so a
`uintptr_t` pgincr is cut to `unsigned int` at the call; the check above
catches exactly that case.
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