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Date: Fri, 8 May 2020 17:36:34 +0200 From: Christoph Hellwig <hch@....de> To: Alexander Viro <viro@...iv.linux.org.uk> Cc: linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-rdma@...r.kernel.org, kvm@...r.kernel.org, linux-fsdevel@...r.kernel.org, io-uring@...r.kernel.org, netdev@...r.kernel.org, bpf@...r.kernel.org Subject: [PATCH 12/12] vtpm_proxy: use __anon_inode_getfd Use __anon_inode_getfd instead of opencoding the logic using get_unused_fd_flags + anon_inode_getfile. Signed-off-by: Christoph Hellwig <hch@....de> --- drivers/char/tpm/tpm_vtpm_proxy.c | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-) diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c b/drivers/char/tpm/tpm_vtpm_proxy.c index 91c772e38bb54..4c0a31209ae5a 100644 --- a/drivers/char/tpm/tpm_vtpm_proxy.c +++ b/drivers/char/tpm/tpm_vtpm_proxy.c @@ -534,7 +534,7 @@ static struct file *vtpm_proxy_create_device( struct vtpm_proxy_new_dev *vtpm_new_dev) { struct proxy_dev *proxy_dev; - int rc, fd; + int fd; struct file *file; if (vtpm_new_dev->flags & ~VTPM_PROXY_FLAGS_ALL) @@ -546,19 +546,10 @@ static struct file *vtpm_proxy_create_device( proxy_dev->flags = vtpm_new_dev->flags; - /* setup an anonymous file for the server-side */ - fd = get_unused_fd_flags(O_RDWR); - if (fd < 0) { - rc = fd; + fd = __anon_inode_getfd("[vtpms]", &vtpm_proxy_fops, proxy_dev, O_RDWR, + &file); + if (fd < 0) goto err_delete_proxy_dev; - } - - file = anon_inode_getfile("[vtpms]", &vtpm_proxy_fops, proxy_dev, - O_RDWR); - if (IS_ERR(file)) { - rc = PTR_ERR(file); - goto err_put_unused_fd; - } /* from now on we can unwind with put_unused_fd() + fput() */ /* simulate an open() on the server side */ @@ -576,13 +567,9 @@ static struct file *vtpm_proxy_create_device( return file; -err_put_unused_fd: - put_unused_fd(fd); - err_delete_proxy_dev: vtpm_proxy_delete_proxy_dev(proxy_dev); - - return ERR_PTR(rc); + return ERR_PTR(fd); } /* -- 2.26.2
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