[PATCH v1 2/3] lib/string_helpers: Change returned value of the strreplace()

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It's more useful to return the original string with strreplace(),
so it may be used like

	attr->name = strreplace(name, '/', '_');

While at it, amend the kernel documentation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 include/linux/string.h |  2 +-
 lib/string_helpers.c   | 10 +++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/linux/string.h b/include/linux/string.h
index a7bff7ed3cb0..cb0c24ce0826 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -169,7 +169,7 @@ static inline void memcpy_flushcache(void *dst, const void *src, size_t cnt)
 #endif
 
 void *memchr_inv(const void *s, int c, size_t n);
-char *strreplace(char *s, char old, char new);
+char *strreplace(char *str, char old, char new);
 
 extern void kfree_const(const void *x);
 
diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index 230020a2e076..ab7b1577cbcf 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -979,14 +979,18 @@ EXPORT_SYMBOL(__sysfs_match_string);
 
 /**
  * strreplace - Replace all occurrences of character in string.
- * @s: The string to operate on.
+ * @str: The string to operate on.
  * @old: The character being replaced.
  * @new: The character @old is replaced with.
  *
- * Returns pointer to the nul byte at the end of @s.
+ * Replaces the each @old character with a @new one in the given string @str.
+ *
+ * Return: pointer to the original string @str.
  */
-char *strreplace(char *s, char old, char new)
+char *strreplace(char *str, char old, char new)
 {
+	char *s = str;
+
 	for (; *s; ++s)
 		if (*s == old)
 			*s = new;
-- 
2.40.0.1.gaa8946217a0b




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