Commit fd5d76ab authored by Todd Poynor's avatar Todd Poynor Committed by Greg Kroah-Hartman
Browse files

staging: gasket: gasket_mmap use PAGE_MASK 



gasket_mmap use PAGE_MASK, instead of performing math on PAGE_SIZE, for
simplicity and clarity.

Reported-by: default avatarGuenter Roeck <groeck@chromium.org>
Signed-off-by: default avatarSimon Que <sque@chromium.org>
Signed-off-by: default avatarTodd Poynor <toddpoynor@google.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0b184cc8

drivers/staging/gasket/gasket_core.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -1591,7 +1591,7 @@ static int gasket_mmap(struct file *filp, struct vm_area_struct *vma) 
	}

	}

	driver_desc = gasket_dev->internal_desc->driver_desc;

	driver_desc = gasket_dev->internal_desc->driver_desc;





	if (vma->vm_start & (PAGE_SIZE - 1)) {

	if (vma->vm_start & ~PAGE_MASK) {

		gasket_log_error(

		gasket_log_error(

			gasket_dev, "Base address not page-aligned: 0x%p\n",

			gasket_dev, "Base address not page-aligned: 0x%p\n",

			(void *)vma->vm_start);

			(void *)vma->vm_start);