* [PATCH][next] rtw88: remove redundant null pointer check on arrays
@ 2019-10-25 11:30 Colin King
2019-10-31 8:05 ` Kalle Valo
0 siblings, 1 reply; 2+ messages in thread
From: Colin King @ 2019-10-25 11:30 UTC (permalink / raw)
To: Yan-Hsuan Chuang, Kalle Valo, David S . Miller, Chris Chiu,
Tzu-En Huang, linux-wireless, netdev
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
The checks to see if swing_table->n or swing_table->p are null are
redundant since n and p are arrays and can never be null if
swing_table is non-null. I believe these are redundant checks
and can be safely removed, especially the checks implies that these
are not arrays which can lead to confusion.
Addresses-Coverity: ("Array compared against 0")
Fixes: c97ee3e0bea2 ("rtw88: add power tracking support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/net/wireless/realtek/rtw88/phy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw88/phy.c b/drivers/net/wireless/realtek/rtw88/phy.c
index 69e7edb629f4..11893ec73376 100644
--- a/drivers/net/wireless/realtek/rtw88/phy.c
+++ b/drivers/net/wireless/realtek/rtw88/phy.c
@@ -2071,7 +2071,7 @@ s8 rtw_phy_pwrtrack_get_pwridx(struct rtw_dev *rtwdev,
return 0;
}
- if (!swing_table || !swing_table->n || !swing_table->p) {
+ if (!swing_table) {
rtw_warn(rtwdev, "swing table not configured\n");
return 0;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH][next] rtw88: remove redundant null pointer check on arrays
2019-10-25 11:30 [PATCH][next] rtw88: remove redundant null pointer check on arrays Colin King
@ 2019-10-31 8:05 ` Kalle Valo
0 siblings, 0 replies; 2+ messages in thread
From: Kalle Valo @ 2019-10-31 8:05 UTC (permalink / raw)
To: Colin King
Cc: Yan-Hsuan Chuang, David S . Miller, Chris Chiu, Tzu-En Huang,
linux-wireless, netdev, kernel-janitors, linux-kernel
Colin King <colin.king@canonical.com> wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> The checks to see if swing_table->n or swing_table->p are null are
> redundant since n and p are arrays and can never be null if
> swing_table is non-null. I believe these are redundant checks
> and can be safely removed, especially the checks implies that these
> are not arrays which can lead to confusion.
>
> Addresses-Coverity: ("Array compared against 0")
> Fixes: c97ee3e0bea2 ("rtw88: add power tracking support")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
Patch applied to wireless-drivers-next.git, thanks.
baff8da6e163 rtw88: remove redundant null pointer check on arrays
--
https://patchwork.kernel.org/patch/11212093/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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