On 7/10/24 00:30, Zhu Jun wrote:

The opened file should be closed in main(), otherwise resource leak will occur that this problem was discovered by reading code

Signed-off-by: Zhu Jun zhujun2@cmss.chinamobile.com

tools/testing/selftests/dma/dma_map_benchmark.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c index 5c997f17fcbd..3fcea00961c0 100644 --- a/tools/testing/selftests/dma/dma_map_benchmark.c +++ b/tools/testing/selftests/dma/dma_map_benchmark.c @@ -114,6 +114,7 @@ int main(int argc, char **argv) map.granule = granule; if (ioctl(fd, cmd, &map)) {

• close(fd);
  

  perror("ioctl"); exit(1); }

@@ -125,5 +126,7 @@ int main(int argc, char **argv) printf("average unmap latency(us):%.1f standard deviation:%.1f\n", map.avg_unmap_100ns/10.0, map.unmap_stddev/10.0);

• close(fd);
• return 0; }

Files get closed when this process exits. There is no need to make this change.

thanks, -- Shuah