From be2c36769f6340322c5367586adad6c3ce1ed51a Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Wed, 21 Jun 2017 12:30:40 +0200 Subject: [PATCH] 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 Reviewed-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- arch/s390/pci/pci.c | 1 + arch/s390/pci/pci_clp.c | 5 +++-- 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; } -- 2.39.5