Kernel: Make it possible for KBufferBuilder creation to fail

This patch adds KBufferBuilder::try_create() and treats it like anything
else that can fail. And so, failure to allocate the initial internal
buffer of the builder will now propagate an ENOMEM to the caller. :^)

1 files changed, 1 insertions, 1 deletions

diff --git a/Kernel/FileSystem/Inode.cpp b/Kernel/FileSystem/Inode.cpp
index b301745df4..a83b41d6e3 100644
--- a/Kernel/FileSystem/Inode.cpp
+++ b/Kernel/FileSystem/Inode.cpp
@@ -47,7 +47,7 @@ void Inode::sync()
 
 KResultOr<NonnullOwnPtr<KBuffer>> Inode::read_entire(OpenFileDescription* description) const
 {
-    KBufferBuilder builder;
+    auto builder = TRY(KBufferBuilder::try_create());
 
     u8 buffer[4096];
     off_t offset = 0;