fix(io): compare function pointers with NULL
The ops->read and ops->write existence was checked with 0, change it
to NULL.
This corrects sparse issues:
drivers/io/io_block.c:272:9: warning:
Using plain integer as NULL pointer
drivers/io/io_block.c:384:9: warning:
Using plain integer as NULL pointer
drivers/io/io_block.c:384:9: warning:
Using plain integer as NULL pointer
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I039050a645107523d8263ddf820e539c260d956c
diff --git a/drivers/io/io_block.c b/drivers/io/io_block.c
index 5d45c2f..b5e0e5f 100644
--- a/drivers/io/io_block.c
+++ b/drivers/io/io_block.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2023, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -271,7 +271,7 @@
block_size = cur->dev_spec->block_size;
assert((length <= cur->size) &&
(length > 0U) &&
- (ops->read != 0));
+ (ops->read != NULL));
/*
* We don't know the number of bytes that we are going
@@ -383,8 +383,8 @@
block_size = cur->dev_spec->block_size;
assert((length <= cur->size) &&
(length > 0U) &&
- (ops->read != 0) &&
- (ops->write != 0));
+ (ops->read != NULL) &&
+ (ops->write != NULL));
/*
* We don't know the number of bytes that we are going