[PATCH] drm/appletbdrm: fix format character for size_t

[Jani Nikula]

Use %zu for size_t instead of %lu to avoid failures on 32-bit builds:

error: format ‘%lu’ expects argument of type ‘long unsigned int’, but
argument 4 has type ‘size_t’ {aka ‘unsigned int’}

Fixes: 0670c2f56e45 ("drm/tiny: add driver for Apple Touch Bars in x86 Macs")
Cc: Kerem Karabay <kekrby at gmail.com>
Cc: Atharva Tiwari <evepolonium at gmail.com>
Cc: Aditya Garg <gargaditya08 at live.com>
Cc: Aun-Ali Zaidi <admin at kodeit.net>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/tiny/appletbdrm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tiny/appletbdrm.c b/drivers/gpu/drm/tiny/appletbdrm.c
index f5d177e234e4..394c8f9bd41a 100644
--- a/drivers/gpu/drm/tiny/appletbdrm.c
+++ b/drivers/gpu/drm/tiny/appletbdrm.c
@@ -167,7 +167,7 @@ static int appletbdrm_send_request(struct appletbdrm_device *adev,
 	}
 
 	if (actual_size != size) {
-		drm_err(drm, "Actual size (%d) doesn't match expected size (%lu)\n",
+		drm_err(drm, "Actual size (%d) doesn't match expected size (%zu)\n",
 			actual_size, size);
 		return -EIO;
 	}
@@ -208,7 +208,7 @@ static int appletbdrm_read_response(struct appletbdrm_device *adev,
 	}
 
 	if (actual_size != size) {
-		drm_err(drm, "Actual size (%d) doesn't match expected size (%lu)\n",
+		drm_err(drm, "Actual size (%d) doesn't match expected size (%zu)\n",
 			actual_size, size);
 		return -EBADMSG;
 	}
-- 
2.39.5