[PATCH 1/3] staging: vt6656: Use ARRAY_SIZE instead of define RATE_54M

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Use ARRAY_SIZE to replace the define RATE_54M so we will never have a
mismatch. In this way, avoid the possibility of a buffer overflow if
this define is changed in the future to a greater value.

Signed-off-by: Oscar Carter <oscar.carter@xxxxxxx>
---
 drivers/staging/vt6656/baseband.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index a19a563d8bcc..3e4bd637849a 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -136,7 +136,7 @@ unsigned int vnt_get_frame_time(u8 preamble_type, u8 pkt_type,
 	unsigned int preamble;
 	unsigned int rate = 0;

-	if (tx_rate > RATE_54M)
+	if (tx_rate >= ARRAY_SIZE(vnt_frame_time))
 		return 0;

 	rate = (unsigned int)vnt_frame_time[tx_rate];
--
2.20.1

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