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-rw-r--r--include/linux/io-mapping.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index cbc2f0cd631..0adb0f91568 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -91,8 +91,11 @@ io_mapping_unmap_atomic(void *vaddr)
static inline void *
io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
{
+ resource_size_t phys_addr;
+
BUG_ON(offset >= mapping->size);
- resource_size_t phys_addr = mapping->base + offset;
+ phys_addr = mapping->base + offset;
+
return ioremap_wc(phys_addr, PAGE_SIZE);
}