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| author | Liu Shixin <liushixin2@huawei.com> | 2020-09-29 03:52:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-05 13:39:16 +0200 |
| commit | 2a3809da6186edacfd16ce4074460c7d0ed32982 (patch) | |
| tree | 81b8040577bfc34e5c785fa2019e7a2c6cdbb86f | |
| parent | test_firmware: Test partial read support (diff) | |
| download | linux-2a3809da6186edacfd16ce4074460c7d0ed32982.tar.xz linux-2a3809da6186edacfd16ce4074460c7d0ed32982.zip | |
binder: simplify the return expression of binder_mmap
Simplify the return expression.
Acked-by: Martijn Coenen <maco@android.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Link: https://lore.kernel.org/r/20200929015216.1829946-1-liushixin2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/android/binder.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 37a505c41dec..49c0700816a5 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -5180,9 +5180,7 @@ static const struct vm_operations_struct binder_vm_ops = { static int binder_mmap(struct file *filp, struct vm_area_struct *vma) { - int ret; struct binder_proc *proc = filp->private_data; - const char *failure_string; if (proc->tsk != current->group_leader) return -EINVAL; @@ -5194,9 +5192,9 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma) (unsigned long)pgprot_val(vma->vm_page_prot)); if (vma->vm_flags & FORBIDDEN_MMAP_FLAGS) { - ret = -EPERM; - failure_string = "bad vm_flags"; - goto err_bad_arg; + pr_err("%s: %d %lx-%lx %s failed %d\n", __func__, + proc->pid, vma->vm_start, vma->vm_end, "bad vm_flags", -EPERM); + return -EPERM; } vma->vm_flags |= VM_DONTCOPY | VM_MIXEDMAP; vma->vm_flags &= ~VM_MAYWRITE; @@ -5204,15 +5202,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma) vma->vm_ops = &binder_vm_ops; vma->vm_private_data = proc; - ret = binder_alloc_mmap_handler(&proc->alloc, vma); - if (ret) - return ret; - return 0; - -err_bad_arg: - pr_err("%s: %d %lx-%lx %s failed %d\n", __func__, - proc->pid, vma->vm_start, vma->vm_end, failure_string, ret); - return ret; + return binder_alloc_mmap_handler(&proc->alloc, vma); } static int binder_open(struct inode *nodp, struct file *filp) |