From d6e52e28e4ca5ae5d066048f5ae2eac68dacb453 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 10 Oct 2019 13:59:55 +0200
Subject: drm/omap: accept NULL for dma_addr in omap_gem_pin
Git-commit: d6e52e28e4ca5ae5d066048f5ae2eac68dacb453
Patch-mainline: v5.5-rc1
References: bsc#1152489
Allow NULL to be passed in 'dma_addr' for omap_gem_pin(), in case the
caller does not need the dma_addr.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010120000.1421-4-jjhiblot@ti.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/omapdrm/omap_gem.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index 9201c21e206f..a6562d23d314 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -819,9 +819,11 @@ int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr)
refcount_inc(&omap_obj->dma_addr_cnt);
}
- *dma_addr = omap_obj->dma_addr;
+ if (dma_addr)
+ *dma_addr = omap_obj->dma_addr;
} else if (omap_gem_is_contiguous(omap_obj)) {
- *dma_addr = omap_obj->dma_addr;
+ if (dma_addr)
+ *dma_addr = omap_obj->dma_addr;
} else {
ret = -EINVAL;
goto fail;
--
2.28.0