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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-01-21 07:49:49 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-01-30 18:17:05 -0600 |
| commit | 1ded56df3247d358390ae6dc09ccee620262ac5f (patch) | |
| tree | 45599518271ae46367189f458763127c5ba2b969 /drivers | |
| parent | 7ce7d89f48834cefece7804d38fc5d85382edf77 (diff) | |
| download | linux-stable-1ded56df3247d358390ae6dc09ccee620262ac5f.tar.gz linux-stable-1ded56df3247d358390ae6dc09ccee620262ac5f.tar.bz2 linux-stable-1ded56df3247d358390ae6dc09ccee620262ac5f.zip | |
PCI: xgene: Fix double free on init error
The "port" variable was allocated with devm_kzalloc() so if we free it with
kfree() it will be freed twice. Also I changed it to propogate the error
from devm_ioremap_resource() instead of returning -ENOMEM.
Fixes: c5d460396100 ("PCI: Add MCFG quirks for X-Gene host controller")
Also-posted-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tanmay Inamdar <tinamdar@apm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/host/pci-xgene.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index 7c3b54b9eb17..142a1669dd82 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -246,14 +246,11 @@ static int xgene_pcie_ecam_init(struct pci_config_window *cfg, u32 ipversion) ret = xgene_get_csr_resource(adev, &csr); if (ret) { dev_err(dev, "can't get CSR resource\n"); - kfree(port); return ret; } port->csr_base = devm_ioremap_resource(dev, &csr); - if (IS_ERR(port->csr_base)) { - kfree(port); - return -ENOMEM; - } + if (IS_ERR(port->csr_base)) + return PTR_ERR(port->csr_base); port->cfg_base = cfg->win; port->version = ipversion; |