On Fri, May 31, 2013 at 10:47:26AM +0200, Robert Richter wrote: > From: Robert Richter <robert.rich...@calxeda.com> > > mmap should return EACCES error if fd can not be opened writable. > This error code also helps userland to map buffers readonly on > failure. > > Signed-off-by: Robert Richter <robert.rich...@calxeda.com> > --- > kernel/events/core.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/events/core.c b/kernel/events/core.c > index 0730f36..a9b6470 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -3761,7 +3761,7 @@ static int perf_mmap(struct file *file, struct > vm_area_struct *vma) > return -EINVAL; > > if (event->attr.persistent && (vma->vm_flags & VM_WRITE)) > - return -EINVAL; > + return -EACCES; > > vma_size = vma->vm_end - vma->vm_start; > nr_pages = (vma_size / PAGE_SIZE) - 1;
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