linux-kernel - [PATCH] ath10k: sdio: remove reduntant check in for loop

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Date:   Mon, 14 Sep 2020 20:19:24 +0100
From:   Alex Dewar <alex.dewar90@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Alex Dewar <alex.dewar90@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, ath10k@...ts.infradead.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ath10k: sdio: remove reduntant check in for loop

The for loop checks whether cur_section is NULL on every iteration, but
we know it can never be NULL as there is another check towards the
bottom of the loop body. Remove this unnecessary check.

Also change i to start at 1, so that we don't need an extra +1 when we
use it.

Addresses-Coverity: 1496984 ("Null pointer dereferences)
Signed-off-by: Alex Dewar <alex.dewar90@...il.com>
---
 drivers/net/wireless/ath/ath10k/sdio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 81ddaafb6721..f31ab2ec2c48 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -2308,7 +2308,7 @@ static int ath10k_sdio_dump_memory_section(struct ath10k *ar,
 
 	count = 0;
 
-	for (i = 0; cur_section; i++) {
+	for (i = 1; ; i++) {
 		section_size = cur_section->end - cur_section->start;
 
 		if (section_size <= 0) {
@@ -2318,7 +2318,7 @@ static int ath10k_sdio_dump_memory_section(struct ath10k *ar,
 			break;
 		}
 
-		if ((i + 1) == mem_region->section_table.size) {
+		if (i == mem_region->section_table.size) {
 			/* last section */
 			next_section = NULL;
 			skip_size = 0;
-- 
2.28.0