[PATCH] x86/pmc_atom: Fix warning when CONFIG_DEBUG_FS=n

[Martin Kelly]

When compiling with CONFIG_DEBUG_FS=n, gcc emits an unused variable
warning for pmc_atom.c because "ret" is used only within the
CONFIG_DEBUG_FS block. This patch fixes it up to eliminate "ret" when
CONFIG_DEBUG_FS=n.

Signed-off-by: Martin Kelly <martkell@xxxxxxxxxx>
---
 arch/x86/kernel/pmc_atom.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/pmc_atom.c b/arch/x86/kernel/pmc_atom.c
index 0c424a6..66e7d88 100644
--- a/arch/x86/kernel/pmc_atom.c
+++ b/arch/x86/kernel/pmc_atom.c
@@ -240,7 +240,9 @@ err:
 static int pmc_setup_dev(struct pci_dev *pdev)
 {
 	struct pmc_dev *pmc = &pmc_device;
+#ifdef CONFIG_DEBUG_FS
 	int ret;
+#endif /* CONFIG_DEBUG_FS */
 
 	/* Obtain ACPI base address */
 	pci_read_config_dword(pdev, ACPI_BASE_ADDR_OFFSET, &acpi_base_addr);
-- 
2.1.0

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