[PATCH v2 1/4] staging: speakup: reuse native kernel functions

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

We have simple_strtoul and simple_strtol. Don't repeat their functionality
here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Acked-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
---
 drivers/staging/speakup/kobjects.c    |  2 +-
 drivers/staging/speakup/main.c        |  2 +-
 drivers/staging/speakup/speakup.h     |  1 -
 drivers/staging/speakup/varhandlers.c | 30 +-----------------------------
 4 files changed, 3 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index 35f647c..d0f660b 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -617,7 +617,7 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
 			len = E_INC;
 		else
 			len = E_SET;
-		speakup_s2i(cp, &value);
+		value = simple_strtol(cp, NULL, 10);
 		ret = spk_set_num_var(value, param, len);
 		if (ret == E_RANGE) {
 			var_data = param->data;
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 9916e94..6c7b55c 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -1892,7 +1892,7 @@ oops:
 		spk_special_handler = NULL;
 		return 1;
 	}
-	cp = speakup_s2i(goto_buf, &go_pos);
+	go_pos = simple_strtol(goto_buf, &cp, 10);
 	goto_pos = (u_long) go_pos;
 	if (*cp == 'x') {
 		if (*goto_buf < '0')
diff --git a/drivers/staging/speakup/speakup.h b/drivers/staging/speakup/speakup.h
index 22f0fbb..1e5691c 100644
--- a/drivers/staging/speakup/speakup.h
+++ b/drivers/staging/speakup/speakup.h
@@ -58,7 +58,6 @@ void spk_reset_index_count(int sc);
 void spk_get_index_count(int *linecount, int *sentcount);
 extern int spk_set_key_info(const u_char *key_info, u_char *k_buffer);
 extern char *spk_strlwr(char *s);
-extern char *speakup_s2i(char *start, int *dest);
 extern char *spk_s2uchar(char *start, char *dest);
 extern char *spk_xlate(char *s);
 extern int speakup_kobj_init(void);
diff --git a/drivers/staging/speakup/varhandlers.c b/drivers/staging/speakup/varhandlers.c
index f8c1e45..0a237da 100644
--- a/drivers/staging/speakup/varhandlers.c
+++ b/drivers/staging/speakup/varhandlers.c
@@ -319,38 +319,10 @@ char *spk_strlwr(char *s)
 	return s;
 }
 
-char *speakup_s2i(char *start, int *dest)
-{
-	int val;
-	char ch = *start;
-	if (ch == '-' || ch == '+')
-		start++;
-	if (*start < '0' || *start > '9')
-		return start;
-	val = (*start) - '0';
-	start++;
-	while (*start >= '0' && *start <= '9') {
-		val *= 10;
-		val += (*start) - '0';
-		start++;
-	}
-	if (ch == '-')
-		*dest = -val;
-	else
-		*dest = val;
-	return start;
-}
-
 char *spk_s2uchar(char *start, char *dest)
 {
 	int val = 0;
-	while (*start && *start <= SPACE)
-		start++;
-	while (*start >= '0' && *start <= '9') {
-		val *= 10;
-		val += (*start) - '0';
-		start++;
-	}
+	val = simple_strtoul(skip_spaces(start), &start, 10);
 	if (*start == ',')
 		start++;
 	*dest = (u_char)val;
-- 
1.8.2.rc0.22.gb3600c3

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