[Nouveau] [PATCH resend] drm/nouveau/nv50: handle failures in crtc objects construction
Marcin Slusarz
marcin.slusarz at gmail.com
Sun Apr 15 05:36:09 PDT 2012
Fixes oopses / leaks depending on point of failure.
Signed-off-by: Marcin Slusarz <marcin.slusarz at gmail.com>
---
drivers/gpu/drm/nouveau/nv50_crtc.c | 59 +++++++++++++++++++++----------
drivers/gpu/drm/nouveau/nv50_display.c | 7 +++-
2 files changed, 45 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 7cbc527..44f96f9 100644
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -770,18 +770,16 @@ nv50_crtc_create(struct drm_device *dev, int index)
ret = nouveau_bo_new(dev, 4096, 0x100, TTM_PL_FLAG_VRAM,
0, 0x0000, &nv_crtc->lut.nvbo);
- if (!ret) {
- ret = nouveau_bo_pin(nv_crtc->lut.nvbo, TTM_PL_FLAG_VRAM);
- if (!ret)
- ret = nouveau_bo_map(nv_crtc->lut.nvbo);
- if (ret)
- nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
- }
+ if (ret)
+ goto lut_bo_err;
- if (ret) {
- kfree(nv_crtc);
- return ret;
- }
+ ret = nouveau_bo_pin(nv_crtc->lut.nvbo, TTM_PL_FLAG_VRAM);
+ if (ret)
+ goto lut_bo_pin_err;
+
+ ret = nouveau_bo_map(nv_crtc->lut.nvbo);
+ if (ret)
+ goto lut_bo_map_err;
nv_crtc->index = index;
@@ -796,14 +794,37 @@ nv50_crtc_create(struct drm_device *dev, int index)
ret = nouveau_bo_new(dev, 64*64*4, 0x100, TTM_PL_FLAG_VRAM,
0, 0x0000, &nv_crtc->cursor.nvbo);
- if (!ret) {
- ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
- if (!ret)
- ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
- if (ret)
- nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
- }
+ if (ret)
+ goto cursor_bo_err;
+
+ ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
+ if (ret)
+ goto cursor_bo_pin_err;
+
+ ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
+ if (ret)
+ goto cursor_bo_map_err;
+
+ ret = nv50_cursor_init(nv_crtc);
+ if (ret)
+ goto cursor_init_err;
- nv50_cursor_init(nv_crtc);
return 0;
+
+cursor_init_err:
+ nouveau_bo_unmap(nv_crtc->cursor.nvbo);
+cursor_bo_map_err:
+ nouveau_bo_unpin(nv_crtc->cursor.nvbo);
+cursor_bo_pin_err:
+ nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
+cursor_bo_err:
+ drm_crtc_cleanup(&nv_crtc->base);
+ nouveau_bo_unmap(nv_crtc->lut.nvbo);
+lut_bo_map_err:
+ nouveau_bo_unpin(nv_crtc->lut.nvbo);
+lut_bo_pin_err:
+ nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
+lut_bo_err:
+ kfree(nv_crtc);
+ return ret;
}
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 211e5e9..b526e3f 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -358,8 +358,11 @@ nv50_display_create(struct drm_device *dev)
dev_priv->engine.display.priv = priv;
/* Create CRTC objects */
- for (i = 0; i < 2; i++)
- nv50_crtc_create(dev, i);
+ for (i = 0; i < 2; i++) {
+ ret = nv50_crtc_create(dev, i);
+ if (ret)
+ return ret;
+ }
/* We setup the encoders from the BIOS table */
for (i = 0 ; i < dcb->entries; i++) {
--
1.7.8.5
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