linux-kernel - [PATCH 5.4 23/34] power: supply: core: Break capacity loop

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Message-Id: <20220110071816.436348315@linuxfoundation.org>
Date:   Mon, 10 Jan 2022 08:23:18 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chunyan Zhang <chunyan.zhang@...soc.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: [PATCH 5.4 23/34] power: supply: core: Break capacity loop

From: Linus Walleij <linus.walleij@...aro.org>

commit 51c7b6a0398f54b9120795796a4cff4fc9634f7d upstream.

We should not go on looking for more capacity tables after
we realize we have looked at the last one in
power_supply_find_ocv2cap_table().

Fixes: 3afb50d7125b ("power: supply: core: Add some helpers to use the battery OCV capacity table")
Cc: Chunyan Zhang <chunyan.zhang@...soc.com>
Cc: Baolin Wang <baolin.wang@...ux.alibaba.com>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Baolin Wang <baolin.wang@...ux.alibaba.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/power/supply/power_supply_core.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -742,6 +742,10 @@ power_supply_find_ocv2cap_table(struct p
 		return NULL;
 
 	for (i = 0; i < POWER_SUPPLY_OCV_TEMP_MAX; i++) {
+		/* Out of capacity tables */
+		if (!info->ocv_table[i])
+			break;
+
 		temp_diff = abs(info->ocv_temp[i] - temp);
 
 		if (temp_diff < best_temp_diff) {