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| author | Dave Airlie <airlied@redhat.com> | 2021-03-11 14:35:27 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2021-03-12 11:21:47 +1000 |
| commit | 4042160c2e5433e0759782c402292a90b5bf458d (patch) | |
| tree | 5999a0984f5108e2c67ea35cc8667f44613295c2 /drivers | |
| parent | a829f033e966d5e4aa27c3ef2b381f51734e4a7f (diff) | |
| download | lwn-4042160c2e5433e0759782c402292a90b5bf458d.tar.gz lwn-4042160c2e5433e0759782c402292a90b5bf458d.zip | |
drm/nouveau: fix dma syncing for loops (v2)
The index variable should only be increased in one place.
Noticed this while trying to track down another oops.
v2: use while loop.
Fixes: f295c8cfec83 ("drm/nouveau: fix dma syncing warning with debugging on.")
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210311043527.5376-1-airlied@gmail.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 2375711877cf..fabb314a0b2f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -556,7 +556,8 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) if (nvbo->force_coherent) return; - for (i = 0; i < ttm_dma->num_pages; ++i) { + i = 0; + while (i < ttm_dma->num_pages) { struct page *p = ttm_dma->pages[i]; size_t num_pages = 1; @@ -587,7 +588,8 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) if (nvbo->force_coherent) return; - for (i = 0; i < ttm_dma->num_pages; ++i) { + i = 0; + while (i < ttm_dma->num_pages) { struct page *p = ttm_dma->pages[i]; size_t num_pages = 1; |