From 46e49f434fcaafe3c62232aaa0358f03b462141d Mon Sep 17 00:00:00 2001 From: Dafna Hirschfeld Date: Mon, 15 Aug 2022 11:40:55 +0300 Subject: [PATCH] habanalabs: if map page fails don't try to unmap it The original code tried to unmap a page that was not mapped as part of the map page error path. Signed-off-by: Dafna Hirschfeld Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/common/mmu/mmu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/misc/habanalabs/common/mmu/mmu.c b/drivers/misc/habanalabs/common/mmu/mmu.c index 60740de47b34e..4153aec555949 100644 --- a/drivers/misc/habanalabs/common/mmu/mmu.c +++ b/drivers/misc/habanalabs/common/mmu/mmu.c @@ -403,6 +403,8 @@ int hl_mmu_map_contiguous(struct hl_ctx *ctx, u64 virt_addr, dev_err(hdev->dev, "Map failed for va 0x%llx to pa 0x%llx\n", curr_va, curr_pa); + /* last mapping failed so don't try to unmap it - reduce off by page_size */ + off -= page_size; goto unmap; } } -- 2.30.2