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PCI/IDE: Fix reading a wrong reg for unused sel stream initialization

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During pci_ide_init(), it will write PCI_ID_RESERVED_STREAM_ID into all
unused selective IDE stream blocks. In a selective IDE stream block, IDE
stream ID field is in selective IDE stream control register instead of
selective IDE stream capability register.

Fixes: 079115370d ("PCI/IDE: Initialize an ID for all IDE streams")
Signed-off-by: Li Ming <ming.li@zohomail.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Xu Yilun <yilun.xu@linux.intel.com>
Link: https://patch.msgid.link/20260111073823.486665-1-ming.li@zohomail.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Li Ming 2026-01-11 15:38:23 +08:00 committed by Dan Williams
parent 8370af2019
commit 0b50f116af
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/ide.c
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@ -167,7 +167,7 @@ void pci_ide_init(struct pci_dev *pdev)
for (u16 i = 0; i < nr_streams; i++) {
int pos = __sel_ide_offset(ide_cap, nr_link_ide, i, nr_ide_mem);
pci_read_config_dword(pdev, pos + PCI_IDE_SEL_CAP, &val);
pci_read_config_dword(pdev, pos + PCI_IDE_SEL_CTL, &val);
if (val & PCI_IDE_SEL_CTL_EN)
continue;
val &= ~PCI_IDE_SEL_CTL_ID;