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Fixed re-allocation of SoE request buffer.

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This commit is contained in:
Florian Pose
2026-07-13 13:56:31 +02:00
parent 7251b6c7be
commit 1c91a721ca
1 changed files with 13 additions and 3 deletions
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master/soe_request.c
+13 -3
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@@ -200,8 +200,18 @@ int ec_soe_request_append_data(
size_t size /**< Number of bytes in \a source. */
)
{
if (req->data_size + size > req->mem_size) {
size_t new_size = req->mem_size ? req->mem_size * 2 : size;
size_t new_total_size = req->data_size + size;
if (new_total_size > req->mem_size) {
size_t new_size;
if (req->mem_size * 2 >= new_total_size) {
// just double it to reduce the number of re-allocations
new_size = req->mem_size * 2;
}
else {
new_size = new_total_size;
}
uint8_t *new_data = (uint8_t *) kmalloc(new_size, GFP_KERNEL);
if (!new_data) {
EC_ERR("Failed to allocate %zu bytes of SoE memory.\n",
@@ -215,7 +225,7 @@ int ec_soe_request_append_data(
}
memcpy(req->data + req->data_size, source, size);
req->data_size += size;
req->data_size = new_total_size;
return 0;
}