kasan: remove redundant initialization of variable 'real_size'

Web:        https://git.kernel.org/torvalds/c/48c232395431c23d35cf3b4c5a090bd793316578
Commit:     48c232395431c23d35cf3b4c5a090bd793316578
Parent:     917538e212a2c080af95ccb4376c5387fac08176
Refname:    refs/heads/master
Author:     Colin Ian King <[email protected]>
AuthorDate: Tue Feb 6 15:36:48 2018 -0800
Committer:  Linus Torvalds <[email protected]>
CommitDate: Tue Feb 6 18:32:43 2018 -0800

    kasan: remove redundant initialization of variable 'real_size'
    
    Variable real_size is initialized with a value that is never read, it is
    re-assigned a new value later on, hence the initialization is redundant
    and can be removed.
    
    Cleans up clang warning:
    
      lib/test_kasan.c:422:21: warning: Value stored to 'real_size' during its initialization is never read
    
    Link: http://lkml.kernel.org/r/[email protected]
    Signed-off-by: Colin Ian King <[email protected]>
    Acked-by: Andrey Ryabinin <[email protected]>
    Reviewed-by: Andrew Morton <[email protected]>
    Cc: Alexander Potapenko <[email protected]>
    Cc: Dmitry Vyukov <[email protected]>
    Signed-off-by: Andrew Morton <[email protected]>
    Signed-off-by: Linus Torvalds <[email protected]>
---
 lib/test_kasan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index a808d81b409d..98854a64b014 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -419,7 +419,7 @@ static noinline void __init kasan_stack_oob(void)
 static noinline void __init ksize_unpoisons_memory(void)
 {
 	char *ptr;
-	size_t size = 123, real_size = size;
+	size_t size = 123, real_size;
 
 	pr_info("ksize() unpoisons the whole allocated chunk\n");
 	ptr = kmalloc(size, GFP_KERNEL);
--
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