Tests: Unmap memory ranges on /dev/mem after testing mmap(2)

Author: https://github.com/supercomputer7 Commit: https://github.com/SerenityOS/serenity/commit/1716105e738 Pull-request: https://github.com/SerenityOS/serenity/pull/11895 Reviewed-by: https://github.com/IdanHo ✅
2022-01-14 19:01:51 +02:00 · 2022-01-14 19:01:51 +02:00 · 1716105e73 · 2024-07-17 20:54:49 +09:00
commit 1716105e73
parent 4ba9fa1a00
1 changed files with 5 additions and 1 deletions
--- a/Tests/Kernel/TestMemoryDeviceMmap.cpp
+++ b/Tests/Kernel/TestMemoryDeviceMmap.cpp
@ -23,7 +23,11 @@ static ALWAYS_INLINE bool mem_chunk(int fd, u64 base, u64 length)
 {
    u64 mmoffset = base % sysconf(_SC_PAGESIZE);
    void* mmp = mmap(NULL, mmoffset + length, PROT_READ, MAP_SHARED, fd, base - mmoffset);
-    return mmp != MAP_FAILED;
+    if (mmp == MAP_FAILED)
+        return false;
+    if (munmap(mmp, mmoffset + length) < 0)
+        perror("munmap");
+    return true;
 }

 enum class ReadResult {