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[95.114.33.154]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49e60adaee4sm153244765e9.14.2026.09.11.15.06.01 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 11 Sep 2026 15:06:02 -0700 (PDT) From: Karl Mehltretter To: Jarkko Sakkinen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org Cc: Karl Mehltretter , Dave Hansen , "H. Peter Anvin" , Kai Huang , linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] x86/sgx: Fix the return value in __sgx_alloc_epc_page() kernel-doc Date: Sat, 12 Sep 2026 00:04:42 +0200 Message-Id: <20260911220442.6815-1-kmehltretter@gmail.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" __sgx_alloc_epc_page() returns ERR_PTR(-ENOMEM) when no EPC page is available, but its kernel-doc says that this case returns NULL. Document the error pointer returned when the node search is exhausted. Fixes: 901ddbb9ecf5 ("x86/sgx: Add a basic NUMA allocation scheme to sgx_al= loc_epc_page()") Assisted-by: LLM Signed-off-by: Karl Mehltretter --- arch/x86/kernel/cpu/sgx/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c index 4505f808af5e5f248d89f47006fcd38de3968cf3..f6b24f362e4155a5bf4d27a8462= 2a1cf03c6320c 100644 --- a/arch/x86/kernel/cpu/sgx/main.c +++ b/arch/x86/kernel/cpu/sgx/main.c @@ -475,7 +475,7 @@ static struct sgx_epc_page *__sgx_alloc_epc_page_from_n= ode(int nid) * * Return: * - an EPC page: A borrowed EPC pages were available. - * - NULL: Out of EPC pages. + * - ERR_PTR(-ENOMEM): Out of EPC pages. */ struct sgx_epc_page *__sgx_alloc_epc_page(void) {