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poll: 0 sized descs

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Matheus
2024-06-27 21:14:20 -03:00
parent dc55eb127c
commit 1d2dc5e6e2
1 changed files with 8 additions and 7 deletions
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kernel-src/io/poll.c
+8 -7
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@@ -28,13 +28,13 @@ static void removefromlist(polldata_t **list, polldata_t *data) {
} }
int poll_initdesc(polldesc_t *desc, size_t size) { int poll_initdesc(polldesc_t *desc, size_t size) {
__assert(size);
memset(desc, 0, sizeof(polldesc_t)); memset(desc, 0, sizeof(polldesc_t));
desc->data = alloc(sizeof(polldata_t) * size); if (size != 0) {
if (desc->data == NULL) desc->data = alloc(sizeof(polldata_t) * size);
return ENOMEM; if (desc->data == NULL)
return ENOMEM;
}
desc->thread = _cpu()->thread; desc->thread = _cpu()->thread;
desc->size = size; desc->size = size;
@@ -59,7 +59,7 @@ void poll_add(pollheader_t *header, polldata_t *data, int events) {
} }
void poll_leave(polldesc_t *desc) { void poll_leave(polldesc_t *desc) {
for (uintmax_t i = 0; i < desc->size; ++i) { for (uintmax_t i = 0; i < (desc->size == 0 ? 1 : desc->size); ++i) {
pollheader_t *header = desc->data[i].header; pollheader_t *header = desc->data[i].header;
if (header == NULL) if (header == NULL)
continue; continue;
@@ -169,5 +169,6 @@ void poll_event(pollheader_t *header, int events) {
} }
void poll_destroydesc(polldesc_t *desc) { void poll_destroydesc(polldesc_t *desc) {
free(desc->data); if (desc->size != 0)
free(desc->data);
} }