1 files changed, 0 insertions, 23 deletions

diff --git a/arch/mips/pci/pci-ar724x.c b/arch/mips/pci/pci-ar724x.c
index 785b2659b519..b7a6fcbb8852 100644
--- a/arch/mips/pci/pci-ar724x.c
+++ b/arch/mips/pci/pci-ar724x.c
@@ -9,7 +9,6 @@
  *  by the Free Software Foundation.
  */
 
-#include <linux/spinlock.h>
 #include <linux/irq.h>
 #include <linux/pci.h>
 #include <linux/module.h>
@@ -48,8 +47,6 @@ struct ar724x_pci_controller {
         bool bar0_is_cached;
         u32  bar0_value;
 
-        spinlock_t lock;
-
         struct pci_controller pci_controller;
         struct resource io_res;
         struct resource mem_res;
@@ -75,7 +72,6 @@ pci_bus_to_ar724x_controller(struct pci_bus *bus)
 static int ar724x_pci_local_write(struct ar724x_pci_controller *apc,
                                   int where, int size, u32 value)
 {
-        unsigned long flags;
         void __iomem *base;
         u32 data;
         int s;
@@ -86,8 +82,6 @@ static int ar724x_pci_local_write(struct ar724x_pci_controller *apc,
                 return PCIBIOS_DEVICE_NOT_FOUND;
 
         base = apc->crp_base;
-
-        spin_lock_irqsave(&apc->lock, flags);
         data = __raw_readl(base + (where & ~3));
 
         switch (size) {
@@ -105,14 +99,12 @@ static int ar724x_pci_local_write(struct ar724x_pci_controller *apc,
                 data = value;
                 break;
         default:
-                spin_unlock_irqrestore(&apc->lock, flags);
                 return PCIBIOS_BAD_REGISTER_NUMBER;
         }
 
         __raw_writel(data, base + (where & ~3));
         /* flush write */
         __raw_readl(base + (where & ~3));
-        spin_unlock_irqrestore(&apc->lock, flags);
 
         return PCIBIOS_SUCCESSFUL;
 }
@@ -121,7 +113,6 @@ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
                             int size, uint32_t *value)
 {
         struct ar724x_pci_controller *apc;
-        unsigned long flags;
         void __iomem *base;
         u32 data;
 
@@ -133,8 +124,6 @@ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
                 return PCIBIOS_DEVICE_NOT_FOUND;
 
         base = apc->devcfg_base;
-
-        spin_lock_irqsave(&apc->lock, flags);
         data = __raw_readl(base + (where & ~3));
 
         switch (size) {
@@ -153,13 +142,9 @@ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
         case 4:
                 break;
         default:
-                spin_unlock_irqrestore(&apc->lock, flags);
-
                 return PCIBIOS_BAD_REGISTER_NUMBER;
         }
 
-        spin_unlock_irqrestore(&apc->lock, flags);
-
         if (where == PCI_BASE_ADDRESS_0 && size == 4 &&
             apc->bar0_is_cached) {
                 /* use the cached value */
@@ -175,7 +160,6 @@ static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where,
                              int size, uint32_t value)
 {
         struct ar724x_pci_controller *apc;
-        unsigned long flags;
         void __iomem *base;
         u32 data;
         int s;
@@ -209,8 +193,6 @@ static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where,
         }
 
         base = apc->devcfg_base;
-
-        spin_lock_irqsave(&apc->lock, flags);
         data = __raw_readl(base + (where & ~3));
 
         switch (size) {
@@ -228,15 +210,12 @@ static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where,
                 data = value;
                 break;
         default:
-                spin_unlock_irqrestore(&apc->lock, flags);
-
                 return PCIBIOS_BAD_REGISTER_NUMBER;
         }
 
         __raw_writel(data, base + (where & ~3));
         /* flush write */
         __raw_readl(base + (where & ~3));
-        spin_unlock_irqrestore(&apc->lock, flags);
 
         return PCIBIOS_SUCCESSFUL;
 }
@@ -380,8 +359,6 @@ static int ar724x_pci_probe(struct platform_device *pdev)
         if (apc->irq < 0)
                 return -EINVAL;
 
-        spin_lock_init(&apc->lock);
-
         res = platform_get_resource_byname(pdev, IORESOURCE_IO, "io_base");
         if (!res)
                 return -EINVAL;