linux-kernel - [PATCH 5.10 75/79] hwmon: (mr75203) update pvt->v_num and vm

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Message-Id: <20220913140353.770495619@linuxfoundation.org>
Date:   Tue, 13 Sep 2022 16:05:20 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eliav Farber <farbere@...zon.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 75/79] hwmon: (mr75203) update pvt->v_num and vm_num to the actual number of used sensors

From: Eliav Farber <farbere@...zon.com>

[ Upstream commit bb9195bd6664d94d71647631593e09f705ff5edd ]

This issue is relevant when "intel,vm-map" is set in device-tree, and
defines a lower number of VMs than actually supported.

This change is needed for all places that use pvt->v_num or vm_num
later on in the code.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@...zon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-4-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/hwmon/mr75203.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c
index 81ccb4c6fa5c0..62df0c9498f38 100644
--- a/drivers/hwmon/mr75203.c
+++ b/drivers/hwmon/mr75203.c
@@ -605,6 +605,8 @@ static int mr75203_probe(struct platform_device *pdev)
 				if (pvt->vm_idx[i] >= vm_num ||
 				    pvt->vm_idx[i] == 0xff) {
 					num = i;
+					pvt->v_num = i;
+					vm_num = i;
 					break;
 				}
 		}
-- 
2.35.1