6.17-stable review patch. If anyone has any objections, please let me know.
------------------
From: Haotian Zhang vulab@iscas.ac.cn
[ Upstream commit d8bb447efc5622577994287dc77c684fa8840b30 ]
isst_if_probe() uses pci_read_config_dword() that returns PCIBIOS_* codes. The return code is returned from the probe function as is but probe functions should return normal errnos. A proper implementation can be found in drivers/leds/leds-ss4200.c.
Convert PCIBIOS_* return codes using pcibios_err_to_errno() into normal errno before returning.
Fixes: d3a23584294c ("platform/x86: ISST: Add Intel Speed Select mmio interface") Signed-off-by: Haotian Zhang vulab@iscas.ac.cn Acked-by: Srinivas Pandruvada srinivas.pandruvada@linux.intel.com Link: https://patch.msgid.link/20251117033354.132-1-vulab@iscas.ac.cn Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c b/drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c index 3f4343147dadb..950ede5eab769 100644 --- a/drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c +++ b/drivers/platform/x86/intel/speed_select_if/isst_if_mmio.c @@ -108,11 +108,11 @@ static int isst_if_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ret = pci_read_config_dword(pdev, 0xD0, &mmio_base); if (ret) - return ret; + return pcibios_err_to_errno(ret);
ret = pci_read_config_dword(pdev, 0xFC, &pcu_base); if (ret) - return ret; + return pcibios_err_to_errno(ret);
pcu_base &= GENMASK(10, 0); base_addr = (u64)mmio_base << 23 | (u64) pcu_base << 12;