seize: don't leak a file descriptor

267                     if (stack < 0) {
268                             pr_perror("couldn't log %d's stack", pid);
>>> >>>     CID 164721:  Resource leaks  (RESOURCE_LEAK)
>>> >>>     Variable "f" going out of scope leaks the storage it points to.
269                             return -1;
Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

criu/seize.c

@@ -266,6 +266,7 @@ static int log_unfrozen_stacks(char *root)
 		stack = open_proc(pid, "stack");
 		if (stack < 0) {
 			pr_perror("couldn't log %d's stack", pid);
+			fclose(f);
 			return -1;
 		}
 
@@ -273,6 +274,7 @@ static int log_unfrozen_stacks(char *root)
 		close(stack);
 		if (ret < 0) {
 			pr_perror("couldn't read %d's stack", pid);
+			fclose(f);
 			return -1;
 		}
 		stackbuf[ret] = '\0';