From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 24 Nov 2015 21:38:07 +0000 (-0600)
Subject: PCI: hisi: Fix deferred probing
X-Git-Tag: pci-v4.4-fixes-1~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=9f55cf5654fff70de8675ea128b53281edc794d3;p=users%2Fdwmw2%2Flinux.git

PCI: hisi: Fix deferred probing

The hisi_pcie_probe() function is incorrectly marked as __init, as Kconfig
tells us:

  WARNING: drivers/pci/host/built-in.o(.data+0x7780): Section mismatch in reference from the variable hisi_pcie_driver to the function .init.text:hisi_pcie_probe()

If the probe for this device gets deferred past the point where __init
functions are removed, or the device is unbound and then reattached to the
driver, we branch into uninitialized memory, which is bad.

Remove the __init annotation from hisi_pcie_probe() and
hisi_add_pcie_port().

Fixes: 500a1d9a43e0 ("PCI: hisi: Add HiSilicon SoC Hip05 PCIe driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Zhou Wang <wangzhou1@hisilicon.com>
---

diff --git a/drivers/pci/host/pcie-hisi.c b/drivers/pci/host/pcie-hisi.c
index 35457ecd8e70f..163671a4f798d 100644
--- a/drivers/pci/host/pcie-hisi.c
+++ b/drivers/pci/host/pcie-hisi.c
@@ -111,7 +111,7 @@ static struct pcie_host_ops hisi_pcie_host_ops = {
 	.link_up = hisi_pcie_link_up,
 };
 
-static int __init hisi_add_pcie_port(struct pcie_port *pp,
+static int hisi_add_pcie_port(struct pcie_port *pp,
 				     struct platform_device *pdev)
 {
 	int ret;
@@ -139,7 +139,7 @@ static int __init hisi_add_pcie_port(struct pcie_port *pp,
 	return 0;
 }
 
-static int __init hisi_pcie_probe(struct platform_device *pdev)
+static int hisi_pcie_probe(struct platform_device *pdev)
 {
 	struct hisi_pcie *hisi_pcie;
 	struct pcie_port *pp;