summaryrefslogtreecommitdiffstats
path: root/arch/s390/pci
diff options
context:
space:
mode:
authorSebastian Ott <sebott@linux.vnet.ibm.com>2017-06-21 12:30:40 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-06-28 07:32:14 +0200
commitbe2c36769f6340322c5367586adad6c3ce1ed51a (patch)
tree68e47ef0c816348c98408917bd9cc8ecc69e167d /arch/s390/pci
parent01553d9a2ba7c658bf9e9e5c65466508c1bd6db5 (diff)
downloadlinux-stable-be2c36769f6340322c5367586adad6c3ce1ed51a.tar.gz
linux-stable-be2c36769f6340322c5367586adad6c3ce1ed51a.tar.bz2
linux-stable-be2c36769f6340322c5367586adad6c3ce1ed51a.zip
s390/pci: provide more debug information
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>
Diffstat (limited to 'arch/s390/pci')
-rw-r--r--arch/s390/pci/pci.c1
-rw-r--r--arch/s390/pci/pci_clp.c5
2 files changed, 4 insertions, 2 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 114b390d80f9..d5c7444a0c05 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -772,6 +772,7 @@ void pcibios_remove_bus(struct pci_bus *bus)
list_del(&zdev->entry);
spin_unlock(&zpci_list_lock);
+ zpci_dbg(3, "rem fid:%x\n", zdev->fid);
kfree(zdev);
}
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 3a5cd84e5a3b..bd534b4d40e3 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -193,12 +193,12 @@ out:
int clp_add_pci_device(u32 fid, u32 fh, int configured)
{
struct zpci_dev *zdev;
- int rc;
+ int rc = -ENOMEM;
zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured);
zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
if (!zdev)
- return -ENOMEM;
+ goto error;
zdev->fh = fh;
zdev->fid = fid;
@@ -219,6 +219,7 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
return 0;
error:
+ zpci_dbg(0, "add fid:%x, rc:%d\n", fid, rc);
kfree(zdev);
return rc;
}