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crypto: ccp: Treat bitmap size as allocation failure

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bitmap_find_next_zero_area() uses an out-of-range return value to
indicate failure. Accept only offsets strictly below the bitmap size so
the callers do not depend on the exact failure sentinel.

Signed-off-by: Yury Norov <ynorov@nvidia.com>
This commit is contained in:
Yury Norov 2026-07-08 22:03:09 -04:00
parent 6abf50fde2
commit c69269f941
2 changed files with 2 additions and 2 deletions
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2
drivers/crypto/ccp/ccp-dev-v3.c
View File

@ -28,7 +28,7 @@ static u32 ccp_alloc_ksb(struct ccp_cmd_queue *cmd_q, unsigned int count)
ccp->sb_count,
ccp->sb_start,
count, 0);
if (start <= ccp->sb_count) {
if (start < ccp->sb_count) {
bitmap_set(ccp->sb, start, count);
mutex_unlock(&ccp->sb_mutex);

2
drivers/crypto/ccp/ccp-dev-v5.c
View File

@ -47,7 +47,7 @@ static u32 ccp_lsb_alloc(struct ccp_cmd_queue *cmd_q, unsigned int count)
MAX_LSB_CNT * LSB_SIZE,
0,
count, 0);
if (start <= MAX_LSB_CNT * LSB_SIZE) {
if (start < MAX_LSB_CNT * LSB_SIZE) {
bitmap_set(ccp->lsbmap, start, count);
mutex_unlock(&ccp->sb_mutex);