block: fix pages array leak in bio_map_user_iov error path

[blktests-ci]

Pull request for series with
subject: block: fix pages array leak in bio_map_user_iov error path
version: 1
url: https://patchwork.kernel.org/project/linux-block/list/?series=1091916

[blktests-ci]

Upstream branch: 07dfa98
series: https://patchwork.kernel.org/project/linux-block/list/?series=1091916
version: 1

Pull request is NOT updated. Failed to apply https://patchwork.kernel.org/project/linux-block/list/?series=1091916
error message:

Cmd('git') failed due to: exit code(128)
  cmdline: git am --3way
  stdout: 'Applying: block: fix pages array leak in bio_map_user_iov error path
Patch failed at 0001 block: fix pages array leak in bio_map_user_iov error path
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".'
  stderr: 'error: sha1 information is lacking or useless (block/blk-map.c).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch'

conflict: