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Kernel/DevFS: Use KString for DevFSLinkInode::m_link

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This commit is contained in:
Andreas Kling 2021-07-17 22:11:41 +02:00
parent cd4d73e19e
commit 0d89cfcd9a
2 changed files with 10 additions and 6 deletions
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14
Kernel/FileSystem/DevFS.cpp
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@ -158,10 +158,10 @@ KResultOr<size_t> DevFSLinkInode::read_bytes(off_t offset, size_t, UserOrKernelB
{
Locker locker(m_inode_lock);
VERIFY(offset == 0);
VERIFY(!m_link.is_null());
if (!buffer.write(((const u8*)m_link.substring_view(0).characters_without_null_termination()) + offset, m_link.length()))
VERIFY(m_link);
if (!buffer.write(m_link->characters() + offset, m_link->length()))
return EFAULT;
return m_link.length();
return m_link->length();
}
InodeMetadata DevFSLinkInode::metadata() const
@ -176,12 +176,16 @@ InodeMetadata DevFSLinkInode::metadata() const
return metadata;
}
KResultOr<size_t> DevFSLinkInode::write_bytes(off_t offset, size_t count, const UserOrKernelBuffer& buffer, FileDescription*)
KResultOr<size_t> DevFSLinkInode::write_bytes(off_t offset, size_t count, UserOrKernelBuffer const& buffer, FileDescription*)
{
auto kstring_or_error = buffer.try_copy_into_kstring(count);
if (kstring_or_error.is_error())
return kstring_or_error.error();
Locker locker(m_inode_lock);
VERIFY(offset == 0);
VERIFY(buffer.is_kernel_buffer());
m_link = buffer.copy_into_string(count);
m_link = kstring_or_error.release_value();
return count;
}