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-rw-r--r--include/linux/err.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/err.h b/include/linux/err.h
index a4dacd745fcf..1d60aa86db53 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -44,6 +44,9 @@ static inline void * __must_check ERR_PTR(long error)
/* Return the pointer in the percpu address space. */
#define ERR_PTR_PCPU(error) ((void __percpu *)(unsigned long)ERR_PTR(error))
+/* Cast an error pointer to __iomem. */
+#define IOMEM_ERR_PTR(error) (__force void __iomem *)ERR_PTR(error)
+
/**
* PTR_ERR - Extract the error code from an error pointer.
* @ptr: An error pointer.