linux-kernel - [PATCH v3 7/8] staging: vt6655: Delete bogus check for `init

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Message-Id: <29c758ba58b10bc1da7e864b3a4f377147fc4428.1636729147.git.karolinadrobnik@gmail.com>
Date:   Mon, 15 Nov 2021 10:55:48 +0000
From:   Karolina Drobnik <karolinadrobnik@...il.com>
To:     outreachy-kernel@...glegroups.com
Cc:     gregkh@...uxfoundation.org, forest@...ttletooquiet.net,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Karolina Drobnik <karolinadrobnik@...il.com>,
        Mike Rapoport <mike.rapoport@...il.com>
Subject: [PATCH v3 7/8] staging: vt6655: Delete bogus check for `init_count` in AL2230

Remove an unnecessary check in `rf_write_wake_prog_syn` in `RF_AL2230S`
switch case. This `if` conditional will never be true as `init_count` is
equal to 17 and can't be bigger than `MISCFIFO_SYNDATASIZE - 0`, which
is equal to 21.

Suggested-by: Mike Rapoport <mike.rapoport@...il.com>
Signed-off-by: Karolina Drobnik <karolinadrobnik@...il.com>
---
 drivers/staging/vt6655/rf.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c
index d4c18d9bfc67..4bfadd85c82c 100644
--- a/drivers/staging/vt6655/rf.c
+++ b/drivers/staging/vt6655/rf.c
@@ -697,8 +697,6 @@ bool rf_write_wake_prog_syn(struct vnt_private *priv, unsigned char rf_type,
 		 /* Init Reg + Channel Reg (2) */
 		init_count = CB_AL2230_INIT_SEQ + 2;
 		sleep_count = 0;
-		if (init_count > (MISCFIFO_SYNDATASIZE - sleep_count))
-			return false;
 
 		for (i = 0; i < CB_AL2230_INIT_SEQ; i++)
 			MACvSetMISCFifo(priv, idx++, al2230_init_table[i]);
-- 
2.30.2