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| author | Koichiro Den <den@valinux.co.jp> | 2026-03-20 23:01:39 +0900 |
|---|---|---|
| committer | Manivannan Sadhasivam <mani@kernel.org> | 2026-04-03 22:04:36 +0530 |
| commit | 9c55d0eb4e9d1bf229d691363fb0641a9b05d904 (patch) | |
| tree | 736d4a8801136ac8a9219bc3f8a7728f0882c7d6 /drivers/misc | |
| parent | 70becc1a9b453ce04f97507585afc2cf47e67b11 (diff) | |
| download | lwn-9c55d0eb4e9d1bf229d691363fb0641a9b05d904.tar.gz lwn-9c55d0eb4e9d1bf229d691363fb0641a9b05d904.zip | |
misc: pci_endpoint_test: Use -EINVAL for small subrange size
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
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/pci_endpoint_test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index 55e128ed82f0..496c8f509590 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -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; } |