From: kernel test robot <lkp(a)intel.com&gt; drivers/infiniband/core/user_mad.c:951:7-23: ERROR: umad_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix. Generated by: scripts/coccinelle/api/stream_open.cocci Fixes: 4fbbf75b5a34 ("fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock") CC: Kirill Smelkov <kirr(a)nexedi.com&gt; Reported-by: kernel test robot <lkp(a)intel.com&gt; Signed-off-by: kernel test robot <lkp(a)intel.com&gt; --- tree: https://android.googlesource.com/kernel/common android-3.18 head: 2a0b24ec7915d4943d93eb3ce60d36e91ad2f368 commit: 4fbbf75b5a342ad27de1e557d81ed2538def67f3 [12618/18074] fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock user_mad.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -948,7 +948,7 @@ static int ib_umad_open(struct inode *in list_add_tail(&file->port_list, &port->file_list); - ret = nonseekable_open(inode, filp); + ret = stream_open(inode, filp); if (ret) { list_del(&file->port_list); kfree(file);