7 files changed, 29 insertions, 74 deletions

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index f42be069e085..977ef208c051 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -57,9 +57,6 @@ static struct dentry_operations anon_inodefs_dentry_operations = {
  *                    anonymous inode, and a dentry that describe the "class"
  *                    of the file
  *
- * @pfd:     [out]   pointer to the file descriptor
- * @dpinode: [out]   pointer to the inode
- * @pfile:   [out]   pointer to the file struct
  * @name:    [in]    name of the "class" of the new file
  * @fops     [in]    file operations for the new file
  * @priv     [in]    private data for the new file (will be file's private_data)
@@ -68,10 +65,9 @@ static struct dentry_operations anon_inodefs_dentry_operations = {
  * that do not need to have a full-fledged inode in order to operate correctly.
  * All the files created with anon_inode_getfd() will share a single inode,
  * hence saving memory and avoiding code duplication for the file/inode/dentry
- * setup.
+ * setup.  Returns new descriptor or -error.
  */
-int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
-                     const char *name, const struct file_operations *fops,
+int anon_inode_getfd(const char *name, const struct file_operations *fops,
                      void *priv)
 {
         struct qstr this;
@@ -125,10 +121,7 @@ int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
 
         fd_install(fd, file);
 
-        *pfd = fd;
-        *pinode = anon_inode_inode;
-        *pfile = file;
-        return 0;
+        return fd;
 
 err_dput:
         dput(dentry);
diff --git a/fs/eventfd.c b/fs/eventfd.c
index a9f130cd50ac..343942deeec1 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -200,10 +200,8 @@ struct file *eventfd_fget(int fd)
 
 asmlinkage long sys_eventfd(unsigned int count)
 {
-        int error, fd;
+        int fd;
         struct eventfd_ctx *ctx;
-        struct file *file;
-        struct inode *inode;
 
         ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
         if (!ctx)
@@ -216,12 +214,9 @@ asmlinkage long sys_eventfd(unsigned int count)
          * When we call this, the initialization must be complete, since
          * anon_inode_getfd() will install the fd.
          */
-        error = anon_inode_getfd(&fd, &inode, &file, "[eventfd]",
-                                 &eventfd_fops, ctx);
-        if (!error)
-                return fd;
-
-        kfree(ctx);
-        return error;
+        fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx);
+        if (fd < 0)
+                kfree(ctx);
+        return fd;
 }
 
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 221086fef174..990c01d2d66b 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1050,8 +1050,6 @@ asmlinkage long sys_epoll_create(int size)
 {
         int error, fd = -1;
         struct eventpoll *ep;
-        struct inode *inode;
-        struct file *file;
 
         DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d)\n",
                      current, size));
@@ -1061,29 +1059,24 @@ asmlinkage long sys_epoll_create(int size)
          * structure ( "struct eventpoll" ).
          */
         error = -EINVAL;
-        if (size <= 0 || (error = ep_alloc(&ep)) != 0)
+        if (size <= 0 || (error = ep_alloc(&ep)) < 0) {
+                fd = error;
                 goto error_return;
+        }
 
         /*
          * Creates all the items needed to setup an eventpoll file. That is,
-         * a file structure, and inode and a free file descriptor.
+         * a file structure and a free file descriptor.
          */
-        error = anon_inode_getfd(&fd, &inode, &file, "[eventpoll]",
-                                 &eventpoll_fops, ep);
-        if (error)
-                goto error_free;
+        fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep);
+        if (fd < 0)
+                ep_free(ep);
 
+error_return:
         DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
                      current, size, fd));
 
         return fd;
-
-error_free:
-        ep_free(ep);
-error_return:
-        DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
-                     current, size, error));
-        return error;
 }
 
 /*
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 8ead0db35933..619725644c75 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -207,11 +207,8 @@ static const struct file_operations signalfd_fops = {
 
 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
 {
-        int error;
         sigset_t sigmask;
         struct signalfd_ctx *ctx;
-        struct file *file;
-        struct inode *inode;
 
         if (sizemask != sizeof(sigset_t) ||
             copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
@@ -230,12 +227,11 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas
                  * When we call this, the initialization must be complete, since
                  * anon_inode_getfd() will install the fd.
                  */
-                error = anon_inode_getfd(&ufd, &inode, &file, "[signalfd]",
-                                         &signalfd_fops, ctx);
-                if (error)
-                        goto err_fdalloc;
+                ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx);
+                if (ufd < 0)
+                        kfree(ctx);
         } else {
-                file = fget(ufd);
+                struct file *file = fget(ufd);
                 if (!file)
                         return -EBADF;
                 ctx = file->private_data;
@@ -252,9 +248,4 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas
         }
 
         return ufd;
-
-err_fdalloc:
-        kfree(ctx);
-        return error;
 }
-
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 5400524e9cb1..d87d354ec424 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -181,10 +181,8 @@ static struct file *timerfd_fget(int fd)
 
 asmlinkage long sys_timerfd_create(int clockid, int flags)
 {
-        int error, ufd;
+        int ufd;
         struct timerfd_ctx *ctx;
-        struct file *file;
-        struct inode *inode;
 
         if (flags)
                 return -EINVAL;
@@ -200,12 +198,9 @@ asmlinkage long sys_timerfd_create(int clockid, int flags)
         ctx->clockid = clockid;
         hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS);
 
-        error = anon_inode_getfd(&ufd, &inode, &file, "[timerfd]",
-                                 &timerfd_fops, ctx);
-        if (error) {
+        ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx);
+        if (ufd < 0)
                 kfree(ctx);
-                return error;
-        }
 
         return ufd;
 }
diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h
index b2e1ba325b9a..6129e58ca7c9 100644
--- a/include/linux/anon_inodes.h
+++ b/include/linux/anon_inodes.h
@@ -8,8 +8,7 @@
 #ifndef _LINUX_ANON_INODES_H
 #define _LINUX_ANON_INODES_H
 
-int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
-                     const char *name, const struct file_operations *fops,
+int anon_inode_getfd(const char *name, const struct file_operations *fops,
                      void *priv);
 
 #endif /* _LINUX_ANON_INODES_H */
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c82cf15730a1..e89338e2b043 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -834,16 +834,9 @@ static const struct file_operations kvm_vcpu_fops = {
  */
 static int create_vcpu_fd(struct kvm_vcpu *vcpu)
 {
-        int fd, r;
-        struct inode *inode;
-        struct file *file;
-
-        r = anon_inode_getfd(&fd, &inode, &file,
-                             "kvm-vcpu", &kvm_vcpu_fops, vcpu);
-        if (r) {
+        int fd = anon_inode_getfd("kvm-vcpu", &kvm_vcpu_fops, vcpu);
+        if (fd < 0)
                 kvm_put_kvm(vcpu->kvm);
-                return r;
-        }
         return fd;
 }
 
@@ -1168,19 +1161,15 @@ static const struct file_operations kvm_vm_fops = {
 
 static int kvm_dev_ioctl_create_vm(void)
 {
-        int fd, r;
-        struct inode *inode;
-        struct file *file;
+        int fd;
         struct kvm *kvm;
 
         kvm = kvm_create_vm();
         if (IS_ERR(kvm))
                 return PTR_ERR(kvm);
-        r = anon_inode_getfd(&fd, &inode, &file, "kvm-vm", &kvm_vm_fops, kvm);
-        if (r) {
+        fd = anon_inode_getfd("kvm-vm", &kvm_vm_fops, kvm);
+        if (fd < 0)
                 kvm_put_kvm(kvm);
-                return r;
-        }
 
         return fd;
 }