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Message-ID: <1472811519-4897-1-git-send-email-xieyisheng1@huawei.com>
Date: Fri, 2 Sep 2016 18:18:39 +0800
From: Xie Yisheng <xieyisheng1@...wei.com>
To: <mingo@...nel.org>
CC: <guohanjun@...wei.com>, <mark.rutland@....com>,
<will.deacon@....com>, <catalin.marinas@....com>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH] arm64/efi: efi_init error handling fix
From: Yisheng Xie <xieyisheng1@...wei.com>
There's an early memmap leak in efi_init error path, fix it.
Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
---
drivers/firmware/efi/arm-init.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/arm-init.c b/drivers/firmware/efi/arm-init.c
index c49d50e..5080e40 100644
--- a/drivers/firmware/efi/arm-init.c
+++ b/drivers/firmware/efi/arm-init.c
@@ -243,8 +243,10 @@ void __init efi_init(void)
"Unexpected EFI_MEMORY_DESCRIPTOR version %ld",
efi.memmap.desc_version);
- if (uefi_init() < 0)
+ if (uefi_init() < 0) {
+ early_memunmap(efi.memmap.map, params.mmap_size);
return;
+ }
reserve_regions();
efi_memattr_init();
--
1.7.12.4
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