Reported-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/dma-buf/udmabuf.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index ec46513a47..1862bb6bed 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -154,14 +154,17 @@ static long udmabuf_create(struct const udmabuf_create_list *head,
pgbuf = 0; for (i = 0; i < head->count; i++) { + ret = -EBADFD; memfd = fget(list[i].memfd); if (!memfd) goto err; if (!shmem_mapping(file_inode(memfd)->i_mapping)) goto err; seals = memfd_fcntl(memfd, F_GET_SEALS, 0); - if (seals == -EINVAL || - (seals & SEALS_WANTED) != SEALS_WANTED || + if (seals == -EINVAL) + goto err; + ret = -EINVAL; + if ((seals & SEALS_WANTED) != SEALS_WANTED || (seals & SEALS_DENIED) != 0) goto err; pgoff = list[i].offset >> PAGE_SHIFT;