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[83.52.55.163]) by smtp.gmail.com with ESMTPSA id f17sm4740622wrt.63.2021.08.26.12.50.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Aug 2021 12:50:51 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v2 08/11] util/vfio-helpers: Use error_setg in qemu_vfio_find_[fixed/temp]_iova Date: Thu, 26 Aug 2021 21:50:11 +0200 Message-Id: <20210826195014.2180369-9-philmd@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210826195014.2180369-1-philmd@redhat.com> References: <20210826195014.2180369-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.742, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , qemu-block@nongnu.org, Klaus Jensen , Auger Eric , Hanna Reitz , Stefan Hajnoczi , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Have qemu_vfio_find_fixed_iova() and qemu_vfio_find_temp_iova() propagate eventual errors to callers. Suggested-by: Klaus Jensen Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Klaus Jensen --- util/vfio-helpers.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c index 306b5a83e48..7de5081dbd3 100644 --- a/util/vfio-helpers.c +++ b/util/vfio-helpers.c @@ -678,7 +678,8 @@ static bool qemu_vfio_verify_mappings(QEMUVFIOState *s) } static int -qemu_vfio_find_fixed_iova(QEMUVFIOState *s, size_t size, uint64_t *iova) +qemu_vfio_find_fixed_iova(QEMUVFIOState *s, size_t size, uint64_t *iova, + Error **errp) { int i; @@ -696,11 +697,14 @@ qemu_vfio_find_fixed_iova(QEMUVFIOState *s, size_t size, uint64_t *iova) return 0; } } + error_setg(errp, "fixed iova range not found"); + return -ENOMEM; } static int -qemu_vfio_find_temp_iova(QEMUVFIOState *s, size_t size, uint64_t *iova) +qemu_vfio_find_temp_iova(QEMUVFIOState *s, size_t size, uint64_t *iova, + Error **errp) { int i; @@ -718,6 +722,8 @@ qemu_vfio_find_temp_iova(QEMUVFIOState *s, size_t size, uint64_t *iova) return 0; } } + error_setg(errp, "temporary iova range not found"); + return -ENOMEM; } @@ -762,7 +768,7 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size, goto out; } if (!temporary) { - if (qemu_vfio_find_fixed_iova(s, size, &iova0)) { + if (qemu_vfio_find_fixed_iova(s, size, &iova0, errp) < 0) { ret = -ENOMEM; goto out; } @@ -776,7 +782,7 @@ int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size, } qemu_vfio_dump_mappings(s); } else { - if (qemu_vfio_find_temp_iova(s, size, &iova0)) { + if (qemu_vfio_find_temp_iova(s, size, &iova0, errp)) { ret = -ENOMEM; goto out; }