staging: gasket: convert gasket_mmap_has_permissions to bool return

gasket_mmap_has_permissions() should return a boolean value.

Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 2ff328652356a23a4c24f034f88efc73a7bf1bc4..248d717e1df65f502c037498a5f62455f79b7fca 100644 (file)
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -1241,19 +1241,19 @@ static int gasket_release(struct inode *inode, struct file *file)
  * that the provided descriptor/range is of adequate size to hold the range to
  * be mapped.
  */
-static int gasket_mmap_has_permissions(
+static bool gasket_mmap_has_permissions(
        struct gasket_dev *gasket_dev, struct vm_area_struct *vma,
        int bar_permissions)
 {
        int requested_permissions;
        /* Always allow sysadmin to access. */
        if (capable(CAP_SYS_ADMIN))
-               return 1;
+               return true;
 
        /* Never allow non-sysadmins to access to a dead device. */
        if (gasket_dev->status != GASKET_STATUS_ALIVE) {
                gasket_log_info(gasket_dev, "Device is dead.");
-               return 0;
+               return false;
        }
 
        /* Make sure that no wrong flags are set. */
@@ -1265,7 +1265,7 @@ static int gasket_mmap_has_permissions(
                        "Attempting to map a region with requested permissions "
                        "0x%x, but region has permissions 0x%x.",
                        requested_permissions, bar_permissions);
-               return 0;
+               return false;
        }
 
        /* Do not allow a non-owner to write. */
@@ -1275,10 +1275,10 @@ static int gasket_mmap_has_permissions(
                        gasket_dev,
                        "Attempting to mmap a region for write without owning "
                        "device.");
-               return 0;
+               return false;
        }
 
-       return 1;
+       return true;
 }
 
 /*