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From: Xie Yisheng <xieyisheng1@huawei.com>
To: <mingo@kernel.org>
Cc: <guohanjun@huawei.com>, <mark.rutland@arm.com>,
	<will.deacon@arm.com>, <catalin.marinas@arm.com>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH] arm64/efi: efi_init error handling fix
Date: Fri, 2 Sep 2016 18:18:39 +0800	[thread overview]
Message-ID: <1472811519-4897-1-git-send-email-xieyisheng1@huawei.com> (raw)

From: Yisheng Xie <xieyisheng1@huawei.com>

There's an early memmap leak in efi_init error path, fix it.

Signed-off-by: Yisheng Xie <xieyisheng1@huawei.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

             reply	other threads:[~2016-09-02 10:21 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-02 10:18 Xie Yisheng [this message]
2016-09-02 10:26 ` [PATCH] arm64/efi: efi_init error handling fix Will Deacon
2016-09-05 11:11   ` Yisheng Xie
2016-09-05 13:57   ` Matt Fleming
2016-09-07 11:15     ` Yisheng Xie
2016-09-13 11:18       ` Matt Fleming
2016-09-19 12:29         ` Yisheng Xie

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