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; -- 1.8.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/