From: Andy Whitcroft <apw@canonical.com>
To: Matthew Garrett <mjg@redhat.com>,
Jeremy Kerr <jeremy.kerr@canonical.com>
Cc: Andy Whitcroft <apw@canonical.com>,
Matt Fleming <matt.fleming@intel.com>,
linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/5] efivarfs: efivarfs_file_read ensure we free data in error paths
Date: Thu, 11 Oct 2012 11:32:17 +0100 [thread overview]
Message-ID: <1349951541-20498-2-git-send-email-apw@canonical.com> (raw)
In-Reply-To: <1349951541-20498-1-git-send-email-apw@canonical.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
---
drivers/firmware/efivars.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 4b12a8fd..ae50d2f 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -766,7 +766,7 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
unsigned long datasize = 0;
u32 attributes;
void *data;
- ssize_t size;
+ ssize_t size = 0;
status = efivars->ops->get_variable(var->var.VariableName,
&var->var.VendorGuid,
@@ -784,13 +784,13 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
&var->var.VendorGuid,
&attributes, &datasize,
(data + 4));
-
if (status != EFI_SUCCESS)
- return 0;
+ goto out_free;
memcpy(data, &attributes, 4);
size = simple_read_from_buffer(userbuf, count, ppos,
data, datasize + 4);
+out_free:
kfree(data);
return size;
--
1.7.9.5
next prev parent reply other threads:[~2012-10-11 10:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 5:54 [PATCH 1/3] efi: Add support for a UEFI variable filesystem Jeremy Kerr
2012-10-05 5:54 ` [PATCH 2/3] efi: add efivars kobject to efi sysfs folder Jeremy Kerr
2012-10-05 6:51 ` joeyli
2012-10-05 7:44 ` Jeremy Kerr
2012-10-05 5:54 ` [PATCH 3/3] efi: Handle deletions and size changes in efivarfs_write_file Jeremy Kerr
2012-10-06 19:32 ` [PATCH 1/3] efi: Add support for a UEFI variable filesystem Matt Fleming
2012-10-11 10:32 ` [PATCH 0/5] efivarfs: fixes and cleanups Andy Whitcroft
2012-10-11 10:32 ` Andy Whitcroft [this message]
2012-10-11 13:53 ` [PATCH 1/5] efivarfs: efivarfs_file_read ensure we free data in error paths Jeremy Kerr
2012-10-11 10:32 ` [PATCH 2/5] efivarfs: efivarfs_create() ensure we drop our reference on inode on error Andy Whitcroft
2012-10-11 14:13 ` Jeremy Kerr
2012-10-12 19:03 ` Khalid Aziz
2012-10-12 19:21 ` Matt Fleming
2012-10-12 20:11 ` Khalid Aziz
2012-10-11 10:32 ` [PATCH 3/5] efivarfs: efivarfs_fill_super() fix inode reference counts Andy Whitcroft
2012-10-11 14:10 ` Jeremy Kerr
2012-10-11 10:32 ` [PATCH 4/5] efivarfs: efivarfs_fill_super() ensure we free our temporary name Andy Whitcroft
2012-10-11 13:59 ` Jeremy Kerr
2012-10-11 10:32 ` [PATCH 5/5] efivarfs: efivarfs_fill_super() ensure we clean up correctly on error Andy Whitcroft
2012-10-11 14:04 ` Jeremy Kerr
2012-10-11 16:06 ` Andy Whitcroft
2012-10-16 9:16 ` Jeremy Kerr
2012-10-11 12:40 ` [PATCH 0/5] efivarfs: fixes and cleanups Matthew Garrett
2012-10-11 12:48 ` Matt Fleming
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