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fix loop exit condition boundary for get_free_slot

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This commit is contained in:
Daniel Micay 2018-10-14 18:49:48 -04:00
parent 3c0a448c3e
commit 7798b2693e
1 changed files with 3 additions and 3 deletions
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6
malloc.c
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@ -221,7 +221,7 @@ static size_t get_free_slot(struct random_state *rng, size_t slots, struct slab_
unsigned first_bitmap = random_index / 64; unsigned first_bitmap = random_index / 64;
u64 random_split = ~(~0UL << (random_index - first_bitmap * 64)); u64 random_split = ~(~0UL << (random_index - first_bitmap * 64));
for (unsigned i = first_bitmap; i <= slots / 64; i++) { for (unsigned i = first_bitmap; i <= (slots - 1) / 64; i++) {
u64 masked = metadata->bitmap[i]; u64 masked = metadata->bitmap[i];
if (i == slots / 64) { if (i == slots / 64) {
masked |= get_mask(slots - i * 64); masked |= get_mask(slots - i * 64);
@ -239,9 +239,9 @@ static size_t get_free_slot(struct random_state *rng, size_t slots, struct slab_
} }
} }
for (unsigned i = 0; i <= slots / 64; i++) { for (unsigned i = 0; i <= (slots - 1) / 64; i++) {
u64 masked = metadata->bitmap[i]; u64 masked = metadata->bitmap[i];
if (i == slots / 64) { if (i == (slots - 1) / 64) {
masked |= get_mask(slots - i * 64); masked |= get_mask(slots - i * 64);
} }