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D57887.diff
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D57887.diff

diff --git a/usr.sbin/bhyve/block_if.c b/usr.sbin/bhyve/block_if.c
--- a/usr.sbin/bhyve/block_if.c
+++ b/usr.sbin/bhyve/block_if.c
@@ -479,7 +479,7 @@
char name[MAXPATHLEN];
const char *path, *pssval, *ssval, *bootindex_val;
char *cp;
- struct blockif_ctxt *bc;
+ struct blockif_ctxt *bc = NULL;
struct stat sbuf;
struct diocgattr_arg arg;
off_t size, psectsz, psectoff;
@@ -650,10 +650,17 @@
bc->bc_sectsz = sectsz;
bc->bc_psectsz = psectsz;
bc->bc_psectoff = psectoff;
- pthread_mutex_init(&bc->bc_mtx, NULL);
- pthread_cond_init(&bc->bc_cond, NULL);
+ bc->bc_mtx = NULL;
+ bc->bc_cond = bc->bc_work_done_cond = NULL;
+ for (i = 0; i < BLOCKIF_NUMTHR; i++)
+ bc->bc_btid[i] = NULL;
+ if (pthread_mutex_init(&bc->bc_mtx, NULL))
+ goto err;
+ if (pthread_cond_init(&bc->bc_cond, NULL))
+ goto err;
bc->bc_paused = 0;
- pthread_cond_init(&bc->bc_work_done_cond, NULL);
+ if (pthread_cond_init(&bc->bc_work_done_cond, NULL))
+ goto err;
TAILQ_INIT(&bc->bc_freeq);
TAILQ_INIT(&bc->bc_pendq);
TAILQ_INIT(&bc->bc_busyq);
@@ -664,13 +671,34 @@
}
for (i = 0; i < BLOCKIF_NUMTHR; i++) {
- pthread_create(&bc->bc_btid[i], NULL, blockif_thr, bc);
+ if (pthread_create(&bc->bc_btid[i], NULL, blockif_thr, bc)) {
+ bc->bc_btid[i] = NULL;
+ goto err;
+ }
snprintf(tname, sizeof(tname), "blk-%s-%d", ident, i);
pthread_set_name_np(bc->bc_btid[i], tname);
}
return (bc);
err:
+ if (bc != NULL) {
+ void *jval;
+ if (bc->bc_cond) {
+ pthread_mutex_lock(&bc->bc_mtx);
+ bc->bc_closing = 1;
+ pthread_mutex_unlock(&bc->bc_mtx);
+ pthread_cond_broadcast(&bc->bc_cond);
+ for (int i = 0; i < BLOCKIF_NUMTHR; i++)
+ if (bc->bc_btid[i])
+ pthread_join(bc->bc_btid[i], &jval);
+ pthread_cond_destroy(&bc->bc_cond);
+ }
+ if (bc->bc_mtx)
+ pthread_mutex_destroy(&bc->bc_mtx);
+ if (bc->bc_work_done_cond)
+ pthread_cond_destroy(&bc->bc_work_done_cond);
+ free(bc);
+ }
if (fd >= 0)
close(fd);
return (NULL);
@@ -806,6 +834,7 @@
int
blockif_cancel(struct blockif_ctxt *bc, struct blockif_req *breq)
{
+ struct blockif_sig_elem bse;
struct blockif_elem *be;
assert(bc->bc_magic == BLOCKIF_SIG);
@@ -849,11 +878,10 @@
* Interrupt the processing thread to force it return
* prematurely via it's normal callback path.
*/
+ pthread_mutex_init(&bse.bse_mtx, NULL);
+ pthread_cond_init(&bse.bse_cond, NULL);
while (be->be_status == BST_BUSY) {
- struct blockif_sig_elem bse, *old_head;
-
- pthread_mutex_init(&bse.bse_mtx, NULL);
- pthread_cond_init(&bse.bse_cond, NULL);
+ struct blockif_sig_elem *old_head;
bse.bse_pending = 1;
@@ -872,6 +900,8 @@
pthread_mutex_unlock(&bse.bse_mtx);
}
+ pthread_mutex_destroy(&bse.bse_mtx);
+ pthread_cond_destroy(&bse.bse_cond);
pthread_mutex_unlock(&bc->bc_mtx);
/*
@@ -895,7 +925,7 @@
pthread_mutex_lock(&bc->bc_mtx);
bc->bc_closing = 1;
if (bc->bc_resize_event != NULL)
- mevent_disable(bc->bc_resize_event);
+ mevent_delete(bc->bc_resize_event);
pthread_mutex_unlock(&bc->bc_mtx);
pthread_cond_broadcast(&bc->bc_cond);
for (i = 0; i < BLOCKIF_NUMTHR; i++)
@@ -908,6 +938,9 @@
*/
bc->bc_magic = 0;
close(bc->bc_fd);
+ pthread_mutex_destroy(&bc->bc_mtx);
+ pthread_cond_destroy(&bc->bc_cond);
+ pthread_cond_destroy(&bc->bc_work_done_cond);
free(bc);
return (0);

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