drivers: atm, char fix integer as NULL pointer warnings

drivers/atm/nicstar.c:418:25: warning: Using plain integer as NULL pointer
drivers/char/drm/r128_cce.c:820:25: warning: Using plain integer as NULL pointer
drivers/char/tty_io.c:1183:10: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/char/drm/r128_cce.c b/drivers/char/drm/r128_cce.c
index f36adbd3aaf5..c31afbde62e7 100644
--- a/drivers/char/drm/r128_cce.c
+++ b/drivers/char/drm/r128_cce.c
@@ -817,7 +817,7 @@ static struct drm_buf *r128_freelist_get(struct drm_device * dev)
         for (i = 0; i < dma->buf_count; i++) {
                 buf = dma->buflist[i];
                 buf_priv = buf->dev_private;
-                if (buf->file_priv == 0)
+                if (!buf->file_priv)
                         return buf;
         }