Messages in this thread | | | From | Oded Gabbay <> | Date | Thu, 23 Jul 2020 17:21:22 +0300 | Subject | Re: [PATCH] habanalabs: Fix memory leak in error flow of context init |
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On Thu, Jul 23, 2020 at 9:18 AM Tomer Tayar <ttayar@habana.ai> wrote: > > Add a missing free of the cs_pending array in the error flow of context > init. > > Fixes: 4b49c5b118b9 ("habanalabs: Use pending cs amount per asic") > > Signed-off-by: Tomer Tayar <ttayar@habana.ai> > --- > drivers/misc/habanalabs/common/context.c | 18 ++++++++++-------- > 1 file changed, 10 insertions(+), 8 deletions(-) > > diff --git a/drivers/misc/habanalabs/common/context.c b/drivers/misc/habanalabs/common/context.c > index b75a20364fad..3e375958e73b 100644 > --- a/drivers/misc/habanalabs/common/context.c > +++ b/drivers/misc/habanalabs/common/context.c > @@ -138,36 +138,38 @@ int hl_ctx_init(struct hl_device *hdev, struct hl_ctx *ctx, bool is_kernel_ctx) > rc = hl_mmu_ctx_init(ctx); > if (rc) { > dev_err(hdev->dev, "Failed to init mmu ctx module\n"); > - goto mem_ctx_err; > + goto err_free_cs_pending; > } > } else { > ctx->asid = hl_asid_alloc(hdev); > if (!ctx->asid) { > dev_err(hdev->dev, "No free ASID, failed to create context\n"); > - return -ENOMEM; > + rc = -ENOMEM; > + goto err_free_cs_pending; > } > > rc = hl_vm_ctx_init(ctx); > if (rc) { > dev_err(hdev->dev, "Failed to init mem ctx module\n"); > rc = -ENOMEM; > - goto mem_ctx_err; > + goto err_asid_free; > } > > rc = hdev->asic_funcs->ctx_init(ctx); > if (rc) { > dev_err(hdev->dev, "ctx_init failed\n"); > - goto ctx_init_err; > + goto err_vm_ctx_fini; > } > } > > return 0; > > -ctx_init_err: > +err_vm_ctx_fini: > hl_vm_ctx_fini(ctx); > -mem_ctx_err: > - if (ctx->asid != HL_KERNEL_ASID_ID) > - hl_asid_free(hdev, ctx->asid); > +err_asid_free: > + hl_asid_free(hdev, ctx->asid); > +err_free_cs_pending: > + kfree(ctx->cs_pending); > > return rc; > } > -- > 2.17.1 > This patch is: Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
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