[PATCH] ifdef blktrace debugging fields

[thirdparty/linux.git] / block / blktrace.c

diff --git a/block/blktrace.c b/block/blktrace.c
index 2b4ef2b89b8d74b376a2011b5455039fd3730e20..8ff33441d8a214259bd2c718ddb4735874dd2fc5 100644 (file)
--- a/block/blktrace.c
+++ b/block/blktrace.c
@@ -450,8 +450,10 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
  **/
 void blk_trace_shutdown(request_queue_t *q)
 {
-       blk_trace_startstop(q, 0);
-       blk_trace_remove(q);
+       if (q->blk_trace) {
+               blk_trace_startstop(q, 0);
+               blk_trace_remove(q);
+       }
 }
 
 /*