RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 05:08:13 +00:00
Code Issues Activity Actions

Kernel: Make it possible for KBufferBuilder creation to fail

Browse source 
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. :^)
This commit is contained in:
Andreas Kling 2021-09-07 15:54:23 +02:00
parent be613b9ef6
commit 300402cc14
9 changed files with 30 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Kernel/FileSystem/ProcFS.cpp
View file

@ -480,7 +480,7 @@ KResultOr<size_t> ProcFSProcessPropertyInode::read_bytes(off_t offset, size_t co
VERIFY(buffer.user_or_kernel_ptr());
if (!description) {
KBufferBuilder builder;
auto builder = TRY(KBufferBuilder::try_create());
auto process = Process::from_pid(associated_pid());
if (!process)
return KResult(ESRCH);
@ -579,7 +579,7 @@ KResult ProcFSProcessPropertyInode::refresh_data(OpenFileDescription& descriptio
if (!cached_data)
return ENOMEM;
}
KBufferBuilder builder;
auto builder = TRY(KBufferBuilder::try_create());
TRY(try_to_acquire_data(*process, builder));
return build_from_cached_data(builder, static_cast<ProcFSInodeData&>(*cached_data));
}