MDEV-26561 Fix a bug due to unreleased lock

ryancaicse · grooverdan · commit e1eb39a446c3 · 2021-11-09T17:05:55.000+11:00
Fix a bug of unreleased lock ctrl_mutex in the method create_worker_threads
diff --git a/extra/mariabackup/ds_compress.cc b/extra/mariabackup/ds_compress.cc
@@ -369,6 +369,7 @@ create_worker_threads(uint n)
 				   thd)) {
 			msg("compress: pthread_create() failed: "
 			    "errno = %d", errno);
+			pthread_mutex_unlock(&thd->ctrl_mutex);
 			goto err;
 		}
 	}

Original file line number	Diff line number	Diff line change
`@@ -369,6 +369,7 @@ create_worker_threads(uint n)`
`369`	`369`	`thd)) {`
`370`	`370`	`msg("compress: pthread_create() failed: "`
`371`	`371`	`"errno = %d", errno);`
	`372`	`+ pthread_mutex_unlock(&thd->ctrl_mutex);`
`372`	`373`	`goto err;`
`373`	`374`	`}`
`374`	`375`	`}`