Commit 8474901a authored by Andrea Arcangeli's avatar Andrea Arcangeli Committed by Linus Torvalds

userfaultfd: convert BUG() to WARN_ON_ONCE()

Avoid BUG_ON()s and only WARN instead.  This is just a cleanup, it can't
make any runtime difference.  This BUG_ON has never triggered and cannot
trigger.

Link: http://lkml.kernel.org/r/20161216144821.5183-4-aarcange@redhat.comSigned-off-by: default avatarAndrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Michael Rapoport <RAPOPORT@il.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a4605a61
...@@ -574,7 +574,8 @@ static unsigned int userfaultfd_poll(struct file *file, poll_table *wait) ...@@ -574,7 +574,8 @@ static unsigned int userfaultfd_poll(struct file *file, poll_table *wait)
ret = POLLIN; ret = POLLIN;
return ret; return ret;
default: default:
BUG(); WARN_ON_ONCE(1);
return POLLERR;
} }
} }
......
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