[PATCH 3/3] kfifo: Don't use integer as NULL pointer

[Anton Vorontsov]

This patch fixes following sparse warnings:

include/linux/kfifo.h:127:25: warning: Using plain integer as NULL pointer
kernel/kfifo.c:83:21: warning: Using plain integer as NULL pointer

Signed-off-by: Anton Vorontsov <avoront...@ru.mvista.com>
---
 include/linux/kfifo.h |    2 +-
 kernel/kfifo.c        |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 6f6c5f3..bc0fc79 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -124,7 +124,7 @@ extern __must_check unsigned int kfifo_out_peek(struct 
kfifo *fifo,
  */
 static inline bool kfifo_initialized(struct kfifo *fifo)
 {
-       return fifo->buffer != 0;
+       return fifo->buffer != NULL;
 }
 
 /**
diff --git a/kernel/kfifo.c b/kernel/kfifo.c
index 3b00bf8..6d58e1a 100644
--- a/kernel/kfifo.c
+++ b/kernel/kfifo.c
@@ -80,7 +80,7 @@ int kfifo_alloc(struct kfifo *fifo, unsigned int size, gfp_t 
gfp_mask)
 
        buffer = kmalloc(size, gfp_mask);
        if (!buffer) {
-               _kfifo_init(fifo, 0, 0);
+               _kfifo_init(fifo, NULL, 0);
                return -ENOMEM;
        }
 
-- 
1.6.5.7
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