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From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
	"H . Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Cc: Ivan Hu <ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>,
	Ard Biesheuvel
	<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Matt Fleming
	<matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>,
	Ivan Khoronzhuk
	<ivan.khoronzhuk-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: [PATCH 4/8] efi/efi_test: Fix the uninitialized value datasize
Date: Tue, 18 Oct 2016 15:33:14 +0100	[thread overview]
Message-ID: <20161018143318.15673-5-matt@codeblueprint.co.uk> (raw)
In-Reply-To: <20161018143318.15673-1-matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>

From: Ivan Hu <ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>

Fix the minor issue found by CoverityScan
CID 1358931 (#1 of 1): Uninitialized scalar variable (UNINIT)9.
uninit_use: Using uninitialized value datasize.
199        prev_datasize = datasize;
200        status = efi.get_variable(name, vd, at, dz, data);

Signed-off-by: Ivan Hu <ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Signed-off-by: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
---
 drivers/firmware/efi/test/efi_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c
index ae51268737cc..348efc9cf59f 100644
--- a/drivers/firmware/efi/test/efi_test.c
+++ b/drivers/firmware/efi/test/efi_test.c
@@ -155,7 +155,7 @@ static long efi_runtime_get_variable(unsigned long arg)
 {
 	struct efi_getvariable __user *getvariable_user;
 	struct efi_getvariable getvariable;
-	unsigned long datasize, prev_datasize, *dz;
+	unsigned long datasize = 0, prev_datasize, *dz;
 	efi_guid_t vendor_guid, *vd = NULL;
 	efi_status_t status;
 	efi_char16_t *name = NULL;
-- 
2.10.0

  parent reply	other threads:[~2016-10-18 14:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-18 14:33 [GIT PULL 0/8] EFI changes for v4.10 Matt Fleming
     [not found] ` <20161018143318.15673-1-matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-10-18 14:33   ` [PATCH 1/8] MAINTAINERS: add myself as EFI maintainer Matt Fleming
2016-10-18 14:33   ` [PATCH 2/8] efi: Remove unused including <linux/version.h> Matt Fleming
2016-10-18 14:33   ` [PATCH 3/8] efi/arm*: efi_init() error handling fix Matt Fleming
2016-10-18 14:33   ` Matt Fleming [this message]
2016-10-18 14:33   ` [PATCH 5/8] efi/efi_test: Fix the uninitialized value rv Matt Fleming
2016-10-18 14:33   ` [PATCH 6/8] efi/efi_test: Use memdup_user() as a cleanup Matt Fleming
2016-10-18 15:34   ` [GIT PULL 0/8] EFI changes for v4.10 Lukas Wunner
     [not found]     ` <20161018153436.GA2593-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-10-18 15:40       ` Matt Fleming
2016-10-18 14:33 ` [PATCH 7/8] efifb: show framebuffer layout as device attributes Matt Fleming
2016-10-18 14:33 ` [PATCH 8/8] efi: efivar_ssdt_load: Don't return success on allocation failure Matt Fleming
2016-10-18 15:25 ` [GIT PULL 0/8] EFI changes for v4.10 Ingo Molnar
     [not found]   ` <20161018152556.GA27061-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-10-18 15:29     ` Ard Biesheuvel

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