Kernel: Make UserOrKernelBuffer return KResult from read/write/memset

This allows us to simplify a whole bunch of call sites with TRY(). :^)

1 files changed, 3 insertions, 4 deletions

diff --git a/Kernel/FileSystem/BlockBasedFileSystem.cpp b/Kernel/FileSystem/BlockBasedFileSystem.cpp
index 5254364e58..cfc02a650b 100644
--- a/Kernel/FileSystem/BlockBasedFileSystem.cpp
+++ b/Kernel/FileSystem/BlockBasedFileSystem.cpp
@@ -156,8 +156,7 @@ KResult BlockBasedFileSystem::write_block(BlockIndex index, const UserOrKernelBu
             // Fill the cache first.
             TRY(read_block(index, nullptr, block_size()));
         }
-        if (!data.read(entry.data + offset, count))
-            return EFAULT;
+        TRY(data.read(entry.data + offset, count));
 
         cache->mark_dirty(entry);
         entry.has_data = true;
@@ -238,8 +237,8 @@ KResult BlockBasedFileSystem::read_block(BlockIndex index, UserOrKernelBuffer* b
             VERIFY(nread == block_size());
             entry.has_data = true;
         }
-        if (buffer && !buffer->write(entry.data + offset, count))
-            return EFAULT;
+        if (buffer)
+            TRY(buffer->write(entry.data + offset, count));
         return KSuccess;
     });
 }