drm: Use max() to make the ioctl alloc size code cleaner

Use max() to make the code to determine the allocation size for
the ioctl data easier to read.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 68ba014886c2..4a2bf2b857ec 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -683,9 +683,8 @@ long drm_ioctl(struct file *filp,
         }
 
         drv_size = _IOC_SIZE(ioctl->cmd);
-        usize = asize = _IOC_SIZE(cmd);
-        if (drv_size > asize)
-                asize = drv_size;
+        usize = _IOC_SIZE(cmd);
+        asize = max(usize, drv_size);
         cmd = ioctl->cmd;
 
         DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",