staging: gasket: fix plain integer as NULL pointer warning

Trivial fix to remove sparse warnings:

  drivers/staging/gasket/gasket_page_table.c:884:40: warning: Using plain integer as NULL pointer
  drivers/staging/gasket/gasket_page_table.c:1743:57: warning: Using plain integer as NULL pointer
  drivers/staging/gasket/gasket_page_table.c:1768:57: warning: Using plain integer as NULL pointer

Signed-off-by: Ivan Bornyakov <brnkv.i1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index c5390a860f865128b0d8303ef49a851cd5c1bd6e..5d3d33cac12fc939d065b6aee10ecca772bb7be2 100644 (file)
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -881,7 +881,7 @@ static int gasket_perform_mapping(
                        u64 off =
                                (u64)host_addr -
                                (u64)pg_tbl->coherent_pages[0].user_virt;
-                       ptes[i].page = 0;
+                       ptes[i].page = NULL;
                        ptes[i].offset = offset;
                        ptes[i].dma_addr = pg_tbl->coherent_pages[0].paddr +
                                           off + i * PAGE_SIZE;
@@ -1740,7 +1740,7 @@ int gasket_free_coherent_memory(struct gasket_dev *gasket_dev, u64 size,
                                  gasket_dev->coherent_buffer.virt_base,
                                  gasket_dev->coherent_buffer.phys_base);
                gasket_dev->coherent_buffer.length_bytes = 0;
-               gasket_dev->coherent_buffer.virt_base = 0;
+               gasket_dev->coherent_buffer.virt_base = NULL;
                gasket_dev->coherent_buffer.phys_base = 0;
        }
        return 0;
@@ -1765,7 +1765,7 @@ void gasket_free_coherent_memory_all(
                                  gasket_dev->coherent_buffer.virt_base,
                                  gasket_dev->coherent_buffer.phys_base);
                gasket_dev->coherent_buffer.length_bytes = 0;
-               gasket_dev->coherent_buffer.virt_base = 0;
+               gasket_dev->coherent_buffer.virt_base = NULL;
                gasket_dev->coherent_buffer.phys_base = 0;
        }
 }