btrfs: tests: don't leak fs_info in extent_io bitmap tests

The fs_info is not freed at the end of the function and leaks. The
function is called twice so there can be up to 2x sizeof(struct
btrfs_fs_info) of leaked memory.  Fortunatelly this affects only testing
builds, the size could be 16k with several debugging features enabled.

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 9 insertions, 7 deletions

diff --git a/fs/btrfs/tests/extent-io-tests.c b/fs/btrfs/tests/extent-io-tests.c
index 74f69df7a7e1..24003e97e797 100644
--- a/fs/btrfs/tests/extent-io-tests.c
+++ b/fs/btrfs/tests/extent-io-tests.c
@@ -378,8 +378,8 @@ static int test_eb_bitmaps(u32 sectorsize, u32 nodesize)
 {
         struct btrfs_fs_info *fs_info;
         unsigned long len;
-        unsigned long *bitmap;
-        struct extent_buffer *eb;
+        unsigned long *bitmap = NULL;
+        struct extent_buffer *eb = NULL;
         int ret;
 
         test_msg("running extent buffer bitmap tests");
@@ -400,14 +400,15 @@ static int test_eb_bitmaps(u32 sectorsize, u32 nodesize)
         bitmap = kmalloc(len, GFP_KERNEL);
         if (!bitmap) {
                 test_err("couldn't allocate test bitmap");
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto out;
         }
 
         eb = __alloc_dummy_extent_buffer(fs_info, 0, len);
         if (!eb) {
                 test_err("couldn't allocate test extent buffer");
-                kfree(bitmap);
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto out;
         }
 
         ret = __test_eb_bitmaps(bitmap, eb, len);
@@ -419,14 +420,15 @@ static int test_eb_bitmaps(u32 sectorsize, u32 nodesize)
         eb = __alloc_dummy_extent_buffer(NULL, nodesize / 2, len);
         if (!eb) {
                 test_err("couldn't allocate test extent buffer");
-                kfree(bitmap);
-                return -ENOMEM;
+                ret = -ENOMEM;
+                goto out;
         }
 
         ret = __test_eb_bitmaps(bitmap, eb, len);
 out:
         free_extent_buffer(eb);
         kfree(bitmap);
+        btrfs_free_dummy_fs_info(fs_info);
         return ret;
 }