linux-kernel - [PATCH] staging: android: ion: Replace strncpy() for stracpy()

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Date:   Sun,  8 Sep 2019 14:34:50 +1000
From:   Adam Zerella <adam.zerella@...il.com>
To:     labbott@...hat.com, sumit.semwal@...aro.org
Cc:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
        linux-kernel@...r.kernel.org, Adam Zerella <adam.zerella@...il.com>
Subject: [PATCH] staging: android: ion: Replace strncpy() for stracpy()

Using strncpy() does not always terminate the destination string.
stracpy() is a alternative function that does, by using this new
function we will no longer need to insert a null separator.

Signed-off-by: Adam Zerella <adam.zerella@...il.com>
---
 drivers/staging/android/ion/ion.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index e6b1ca141b93..17901bd626be 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -433,8 +433,7 @@ static int ion_query_heaps(struct ion_heap_query *query)
 	max_cnt = query->cnt;
 
 	plist_for_each_entry(heap, &dev->heaps, node) {
-		strncpy(hdata.name, heap->name, MAX_HEAP_NAME);
-		hdata.name[sizeof(hdata.name) - 1] = '\0';
+		stracpy(hdata.name, heap->name, MAX_HEAP_NAME);
 		hdata.type = heap->type;
 		hdata.heap_id = heap->id;
 
-- 
2.21.0