linux-kernel - [RESEND PATCH] x86/sgx: Use vmalloc

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Message-ID: <20241112182633.172944-2-thorsten.blum@linux.dev>
Date: Tue, 12 Nov 2024 19:26:34 +0100
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: Jarkko Sakkinen <jarkko@...nel.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>
Cc: Thorsten Blum <thorsten.blum@...ux.dev>,
	Kai Huang <kai.huang@...el.com>,
	linux-sgx@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RESEND PATCH] x86/sgx: Use vmalloc_array() instead of vmalloc()

Use vmalloc_array() instead of vmalloc() to calculate the number of
bytes to allocate.

Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>
Acked-by: Kai Huang <kai.huang@...el.com>
Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
---
 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 9ace84486499..1a59e5956f4b 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -630,7 +630,7 @@ static bool __init sgx_setup_epc_section(u64 phys_addr, u64 size,
 	if (!section->virt_addr)
 		return false;
 
-	section->pages = vmalloc(nr_pages * sizeof(struct sgx_epc_page));
+	section->pages = vmalloc_array(nr_pages, sizeof(struct sgx_epc_page));
 	if (!section->pages) {
 		memunmap(section->virt_addr);
 		return false;
-- 
2.47.0