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Kernel: Unmapping a non-mapped region with munmap() should be a no-op

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Not a regression per se from 0fcb9efd86
since we were crashing before that which is obviously worse.
This commit is contained in:
Andreas Kling 2021-07-30 13:14:51 +02:00
parent c9395d7e9a
commit bccdc08487
2 changed files with 3 additions and 4 deletions
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5
Tests/Kernel/TestMunMap.cpp
View file

@ -10,8 +10,7 @@
TEST_CASE(munmap_zero_page)
{
// munmap of the unmapped zero page should always fail.
// munmap of the unmapped zero page should always "succeed".
auto res = munmap(0x0, 0xF);
EXPECT_EQ(res, -1);
EXPECT_EQ(errno, EINVAL);
EXPECT_EQ(res, 0);
}