kfifo: Don't use integer as NULL pointer

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 <[email protected]> Acked-by: Stefani Seibold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
ambv · Feb 16, 2010 · 5a5e0f4 · 5a5e0f4
1 parent 4c743d0
commit 5a5e0f4
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diff --git 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
@@ -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;
 	}
-Original file line number
+Diff line change
@@ Expand Up @@
      */
     static inline bool kfifo_initialized(struct kfifo *fifo)
     {
-    	return fifo->buffer != 0;
+    	return fifo->buffer != NULL;
     }
     /**
@@ Expand Down @@