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Kernel: Make AnonymousFile::create API OOM safe

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This commit is contained in:
Brian Gianforcaro 2021-05-28 05:39:40 -07:00 • committed by Linus Groh
parent 1580eeed98
commit d2d6ab40f9
2 changed files with 4 additions and 2 deletions
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4
Kernel/FileSystem/AnonymousFile.h
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@ -12,9 +12,9 @@ namespace Kernel {
class AnonymousFile final : public File { class AnonymousFile final : public File {
public: public:
static NonnullRefPtr<AnonymousFile> create(NonnullRefPtr<AnonymousVMObject> vmobject) static RefPtr<AnonymousFile> create(NonnullRefPtr<AnonymousVMObject> vmobject)
{ {
return adopt_ref(*new AnonymousFile(move(vmobject))); return adopt_ref_if_nonnull(new AnonymousFile(move(vmobject)));
} }
virtual ~AnonymousFile() override; virtual ~AnonymousFile() override;

2
Kernel/Syscalls/anon_create.cpp
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@ -30,6 +30,8 @@ KResultOr<int> Process::sys$anon_create(size_t size, int options)
return ENOMEM; return ENOMEM;
auto anon_file = AnonymousFile::create(vmobject.release_nonnull()); auto anon_file = AnonymousFile::create(vmobject.release_nonnull());
if (!anon_file)
return ENOMEM;
auto description_or_error = FileDescription::create(*anon_file); auto description_or_error = FileDescription::create(*anon_file);
if (description_or_error.is_error()) if (description_or_error.is_error())
return description_or_error.error(); return description_or_error.error();