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[PATCH v3 04/11] util/vfio-helpers: Remove unreachable code in qemu_vfio
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v3 04/11] util/vfio-helpers: Remove unreachable code in qemu_vfio_dma_map() |
Date: |
Thu, 2 Sep 2021 09:00:18 +0200 |
qemu_vfio_add_mapping() returns a pointer to an indexed entry
in pre-allocated QEMUVFIOState::mappings[], thus can not be NULL.
Remove the pointless check.
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
util/vfio-helpers.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c
index d956866b4e9..e7909222cfd 100644
--- a/util/vfio-helpers.c
+++ b/util/vfio-helpers.c
@@ -751,10 +751,6 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t
size,
}
mapping = qemu_vfio_add_mapping(s, host, size, index + 1, iova0);
- if (!mapping) {
- ret = -ENOMEM;
- goto out;
- }
assert(qemu_vfio_verify_mappings(s));
ret = qemu_vfio_do_mapping(s, host, size, iova0);
if (ret) {
--
2.31.1
- [PATCH v3 00/11] block/nvme: Rework error reporting, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 01/11] block/nvme: Use safer trace format string, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 02/11] util/vfio-helpers: Let qemu_vfio_verify_mappings() use error_report(), Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 03/11] util/vfio-helpers: Replace qemu_mutex_lock() calls with QEMU_LOCK_GUARD, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 04/11] util/vfio-helpers: Remove unreachable code in qemu_vfio_dma_map(),
Philippe Mathieu-Daudé <=
- [PATCH v3 05/11] block/nvme: Have nvme_create_queue_pair() report errors consistently, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 06/11] util/vfio-helpers: Pass Error handle to qemu_vfio_dma_map(), Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 07/11] util/vfio-helpers: Extract qemu_vfio_water_mark_reached(), Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 08/11] util/vfio-helpers: Use error_setg in qemu_vfio_find_[fixed/temp]_iova, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 09/11] util/vfio-helpers: Simplify qemu_vfio_dma_map() returning directly, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 10/11] util/vfio-helpers: Let qemu_vfio_do_mapping() propagate Error, Philippe Mathieu-Daudé, 2021/09/02
- [PATCH v3 11/11] block/nvme: Only report VFIO error on failed retry, Philippe Mathieu-Daudé, 2021/09/02
- Re: [PATCH v3 00/11] block/nvme: Rework error reporting, Stefan Hajnoczi, 2021/09/02