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misc: pci_endpoint_test: Use -EINVAL for small subrange size

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The sub_size check ensures that each subrange is large enough for 32-bit
accesses. Subranges smaller than sizeof(u32) do not satisfy this
assumption, so this is a local sanity check rather than a resource
exhaustion case.

Return -EINVAL instead of -ENOSPC for this case.

Suggested-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://patch.msgid.link/20260320140139.2415480-1-den@valinux.co.jp
This commit is contained in:
Koichiro Den
2026-03-20 23:01:39 +09:00
committed by Manivannan Sadhasivam
parent 70becc1a9b
commit 9c55d0eb4e
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/pci_endpoint_test.c
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@@ -547,7 +547,7 @@ static int pci_endpoint_test_bar_subrange(struct pci_endpoint_test *test,
sub_size = bar_size / nsub;
if (sub_size < sizeof(u32)) {
ret = -ENOSPC;
ret = -EINVAL;
goto out_clear;
}