Add special pci_mmcfg_insert_lock mutex since pci_mmcfg_lock was moved
to common file. No functional changes.

Signed-off-by: Tomasz Nowicki <[email protected]>
---
 arch/x86/pci/mmconfig-shared.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 94c3d38..d1e45e7 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -28,6 +28,7 @@
 /* Indicate if the mmcfg resources have been placed into the resource table. */
 static bool pci_mmcfg_running_state;
 static bool pci_mmcfg_arch_init_failed;
+static DEFINE_MUTEX(pci_mmcfg_insert_lock);
 
 static const char *__init pci_mmcfg_e7520(void)
 {
@@ -566,7 +567,7 @@ int pci_mmconfig_insert(struct device *dev, u16 seg, u8 
start, u8 end,
        if (start > end)
                return -EINVAL;
 
-       mutex_lock(&pci_mmcfg_lock);
+       mutex_lock(&pci_mmcfg_insert_lock);
        cfg = pci_mmconfig_lookup(seg, start);
        if (cfg) {
                if (cfg->end_bus < end)
@@ -575,12 +576,12 @@ int pci_mmconfig_insert(struct device *dev, u16 seg, u8 
start, u8 end,
                                 "domain %04x [bus %02x-%02x] "
                                 "only partially covers this bridge\n",
                                  cfg->segment, cfg->start_bus, cfg->end_bus);
-               mutex_unlock(&pci_mmcfg_lock);
+               mutex_unlock(&pci_mmcfg_insert_lock);
                return -EEXIST;
        }
 
        if (!addr) {
-               mutex_unlock(&pci_mmcfg_lock);
+               mutex_unlock(&pci_mmcfg_insert_lock);
                return -EINVAL;
        }
 
@@ -621,7 +622,7 @@ int pci_mmconfig_insert(struct device *dev, u16 seg, u8 
start, u8 end,
                kfree(cfg);
        }
 
-       mutex_unlock(&pci_mmcfg_lock);
+       mutex_unlock(&pci_mmcfg_insert_lock);
 
        return rc;
 }
-- 
1.9.1

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