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s390/pci: provide more debug information

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Add some debug data to observe the lifetime of the
architecture specific device information.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2017-06-21 12:30:40 +02:00 committed by Martin Schwidefsky
parent 01553d9a2b
commit be2c36769f
2 changed files with 4 additions and 2 deletions
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1
arch/s390/pci/pci.c
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@ -772,6 +772,7 @@ void pcibios_remove_bus(struct pci_bus *bus)
list_del(&zdev->entry); list_del(&zdev->entry);
spin_unlock(&zpci_list_lock); spin_unlock(&zpci_list_lock);
zpci_dbg(3, "rem fid:%x\n", zdev->fid);
kfree(zdev); kfree(zdev);
} }

5
arch/s390/pci/pci_clp.c
View File

@ -193,12 +193,12 @@ out:
int clp_add_pci_device(u32 fid, u32 fh, int configured) int clp_add_pci_device(u32 fid, u32 fh, int configured)
{ {
struct zpci_dev *zdev; struct zpci_dev *zdev;
int rc; int rc = -ENOMEM;
zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured); zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured);
zdev = kzalloc(sizeof(*zdev), GFP_KERNEL); zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
if (!zdev) if (!zdev)
return -ENOMEM; goto error;
zdev->fh = fh; zdev->fh = fh;
zdev->fid = fid; zdev->fid = fid;
@ -219,6 +219,7 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
return 0; return 0;
error: error:
zpci_dbg(0, "add fid:%x, rc:%d\n", fid, rc);
kfree(zdev); kfree(zdev);
return rc; return rc;
} }