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| author | Jianglei Nie <niejianglei2021@163.com> | 2022-07-05 12:43:06 +0300 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2022-07-07 22:57:27 +0300 |
| commit | 6dc548745d5b5102e3c53dc5097296ac270b6c69 (patch) | |
| tree | aa30d9ae7fa44eefdc8ddf0269b50ab2a08b369c /drivers/gpu/drm/nouveau/nouveau_bo.c | |
| parent | 540dfd188ea2940582841c1c220bd035a7db0e51 (diff) | |
| download | linux-6dc548745d5b5102e3c53dc5097296ac270b6c69.tar.xz | |
drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()
nouveau_bo_alloc() allocates a memory chunk for "nvbo" with kzalloc().
When some error occurs, "nvbo" should be released. But when
WARN_ON(pi < 0)) equals true, the function return ERR_PTR without
releasing the "nvbo", which will lead to a memory leak.
We should release the "nvbo" with kfree() if WARN_ON(pi < 0)) equals true.
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705094306.2244103-1-niejianglei2021@163.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 05076e530e7d..d0887438b07e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -281,8 +281,10 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain, break; } - if (WARN_ON(pi < 0)) + if (WARN_ON(pi < 0)) { + kfree(nvbo); return ERR_PTR(-EINVAL); + } /* Disable compression if suitable settings couldn't be found. */ if (nvbo->comp && !vmm->page[pi].comp) { |