[edk2-devel] [PATCH v1 2/2] OvmfPkg/VirtioFsDxe: suppress incorrect gcc warnings

Sergei Dmitrouk sergei at posteo.net
Tue May 11 22:56:16 UTC 2021


`CreateDirectoryIfCreating` is used only if `PermitCreation` is set.

`NewNodeIsDirectory` might not set in case of error, but that would lead
to leaving the function before invalid use.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3228
Cc: Laszlo Ersek <lersek at redhat.com>
Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
Cc: Jordan Justen <jordan.l.justen at intel.com>
Signed-off-by: Sergei Dmitrouk <sergei at posteo.net>
---
 OvmfPkg/VirtioFsDxe/SimpleFsOpen.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/OvmfPkg/VirtioFsDxe/SimpleFsOpen.c b/OvmfPkg/VirtioFsDxe/SimpleFsOpen.c
index d73d23fe8665..9e46e8ab8385 100644
--- a/OvmfPkg/VirtioFsDxe/SimpleFsOpen.c
+++ b/OvmfPkg/VirtioFsDxe/SimpleFsOpen.c
@@ -332,6 +332,12 @@ VirtioFsSimpleFileOpen (
     return EFI_INVALID_PARAMETER;
   }
 
+  //
+  // Set CreateDirectoryIfCreating to suppress incorrect compiler/analyzer
+  // warnings.
+  //
+  CreateDirectoryIfCreating = FALSE;
+
   //
   // Validate the Attributes requested for the case when the file ends up being
   // created, provided creation is permitted.
@@ -426,6 +432,11 @@ VirtioFsSimpleFileOpen (
     goto FreeNewCanonicalPath;
   }
 
+  //
+  // Set NewNodeIsDirectory to suppress incorrect compiler/analyzer warnings.
+  //
+  NewNodeIsDirectory = FALSE;
+
   //
   // Try to open LastComponent directly under DirNodeId, as an existent regular
   // file or directory.
-- 
2.17.6



-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#75047): https://edk2.groups.io/g/devel/message/75047
Mute This Topic: https://groups.io/mt/82760960/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-





More information about the edk2-devel-archive mailing list