[PATCH 1/2] error-injection: Remove EI_ETYPE_NONE

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From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

Since the EI_ETYPE_NONE is confusing type, replace it with appropriate
errno. The EI_ETYPE_NONE has been introduced for a dummy (error) value,
but it can mislead people that they can use ALLOW_ERROR_INJECTION(func,
NONE). So remove it from the EI_ETYPE and use appropriate errno instead.

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Fixes: 663faf9f7bee ("error-injection: Add injectable error types")
---
 include/asm-generic/error-injection.h |    1 -
 include/linux/error-injection.h       |    2 +-
 lib/error-inject.c                    |    2 +-
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/asm-generic/error-injection.h b/include/asm-generic/error-injection.h
index fbca56bd9cbc..c0b9d3217ed9 100644
--- a/include/asm-generic/error-injection.h
+++ b/include/asm-generic/error-injection.h
@@ -4,7 +4,6 @@
 
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
 enum {
-	EI_ETYPE_NONE,		/* Dummy value for undefined case */
 	EI_ETYPE_NULL,		/* Return NULL if failure */
 	EI_ETYPE_ERRNO,		/* Return -ERRNO if failure */
 	EI_ETYPE_ERRNO_NULL,	/* Return -ERRNO or NULL if failure */
diff --git a/include/linux/error-injection.h b/include/linux/error-injection.h
index 635a95caf29f..268fecfc1e82 100644
--- a/include/linux/error-injection.h
+++ b/include/linux/error-injection.h
@@ -19,7 +19,7 @@ static inline bool within_error_injection_list(unsigned long addr)
 
 static inline int get_injectable_error_type(unsigned long addr)
 {
-	return EI_ETYPE_NONE;
+	return -EOPNOTSUPP;
 }
 
 #endif
diff --git a/lib/error-inject.c b/lib/error-inject.c
index 1afca1b1cdea..32c14770508e 100644
--- a/lib/error-inject.c
+++ b/lib/error-inject.c
@@ -40,7 +40,7 @@ bool within_error_injection_list(unsigned long addr)
 int get_injectable_error_type(unsigned long addr)
 {
 	struct ei_entry *ent;
-	int ei_type = EI_ETYPE_NONE;
+	int ei_type = -EINVAL;
 
 	mutex_lock(&ei_mutex);
 	list_for_each_entry(ent, &error_injection_list, list) {




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