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Subject[PATCH 1/3] soc: ti: Use list_first_entry_or_null() at appropriate places
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Use list_first_entry_or_null() for first_region() and first_queue_range().

list_first_entry() expects the list is not empty, so first_region() and
first_queue_range() never return NULL.
Thus use list_first_entry_or_null() instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/soc/ti/knav_qmss.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/ti/knav_qmss.h b/drivers/soc/ti/knav_qmss.h
index bc9dcc8..51da234 100644
--- a/drivers/soc/ti/knav_qmss.h
+++ b/drivers/soc/ti/knav_qmss.h
@@ -348,15 +348,15 @@ struct knav_range_info {
list_for_each_entry(region, &kdev->regions, list)

#define first_region(kdev) \
- list_first_entry(&kdev->regions, \
- struct knav_region, list)
+ list_first_entry_or_null(&kdev->regions, \
+ struct knav_region, list)

#define for_each_queue_range(kdev, range) \
list_for_each_entry(range, &kdev->queue_ranges, list)

#define first_queue_range(kdev) \
- list_first_entry(&kdev->queue_ranges, \
- struct knav_range_info, list)
+ list_first_entry_or_null(&kdev->queue_ranges, \
+ struct knav_range_info, list)

#define for_each_pool(kdev, pool) \
list_for_each_entry(pool, &kdev->pools, list)
--
1.9.1




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