[PATCH] block: cleanup for as/deadline/cfq_var_store()

[Li Zefan]

Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
 block/as-iosched.c       |    4 +---
 block/cfq-iosched.c      |    4 +---
 block/deadline-iosched.c |    4 +---
 3 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/block/as-iosched.c b/block/as-iosched.c
index 71f0abb..d122076 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -1403,9 +1403,7 @@ as_var_show(unsigned int var, char *page)
 static ssize_t
 as_var_store(unsigned long *var, const char *page, size_t count)
 {
-	char *p = (char *) page;
-
-	*var = simple_strtoul(p, &p, 10);
+	*var = simple_strtoul(page, NULL, 10);
 	return count;
 }
 
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 6a062ee..5185dd1 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -2281,9 +2281,7 @@ cfq_var_show(unsigned int var, char *page)
 static ssize_t
 cfq_var_store(unsigned int *var, const char *page, size_t count)
 {
-	char *p = (char *) page;
-
-	*var = simple_strtoul(p, &p, 10);
+	*var = simple_strtoul(page, NULL, 10);
 	return count;
 }
 
diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c
index fd31117..5e24af5 100644
--- a/block/deadline-iosched.c
+++ b/block/deadline-iosched.c
@@ -380,9 +380,7 @@ deadline_var_show(int var, char *page)
 static ssize_t
 deadline_var_store(int *var, const char *page, size_t count)
 {
-	char *p = (char *) page;
-
-	*var = simple_strtol(p, &p, 10);
+	*var = simple_strtol(page, NULL, 10);
 	return count;
 }
 
-- 
1.5.4.rc3
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