iommu/rockchip: Fix silent probe success when all MMU resources fail

Browse source

When all MMU register mappings fail in rk_iommu_probe(), the error
path returns PTR_ERR(iommu->bases[0]). However, bases[0] can be NULL
if the first platform_get_resource() also returned NULL, causing
PTR_ERR(NULL) to evaluate to 0 and the probe to succeed silently.

Return -ENODEV directly instead.

Signed-off-by: ZhaoJinming <zhaojinming@uniontech.com>
Signed-off-by: Will Deacon <will@kernel.org>

...

This commit is contained in:

ZhaoJinming 2026-07-23 21:26:43 +08:00 • committed by Will Deacon

parent 414cb6f3ac

commit ea0a9d453f

1 changed files with 1 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/iommu/rockchip-iommu.c

View file