From: David Arcari <darcari@xxxxxxxxxx>
commit 84e261553e6f919bf0b4d65244599ab2b41f1da5 upstream.
hwmon, specifically hwmon_num_channel_attrs, expects the config
array in the hwmon_channel_info structure to be terminated by
a zero entry. amd_energy does not honor this convention. As
result, a KASAN warning is possible. Fix this by adding an
additional entry and setting it to zero.
Fixes: 8abee9566b7e ("hwmon: Add amd_energy driver to report energy counters")
Signed-off-by: David Arcari <darcari@xxxxxxxxxx>
Cc: Naveen Krishna Chatradhi <nchatrad@xxxxxxx>
Cc: Jean Delvare <jdelvare@xxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: David Arcari <darcari@xxxxxxxxxx>
Acked-by: Naveen Krishna Chatradhi <nchatrad@xxxxxxx>
Link: https://lore.kernel.org/r/20210107144707.6927-1-darcari@xxxxxxxxxx
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/amd_energy.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/hwmon/amd_energy.c
+++ b/drivers/hwmon/amd_energy.c
@@ -222,7 +222,7 @@ static int amd_create_sensor(struct devi
*/
cpus = num_present_cpus() / num_siblings;
- s_config = devm_kcalloc(dev, cpus + sockets,
+ s_config = devm_kcalloc(dev, cpus + sockets + 1,
sizeof(u32), GFP_KERNEL);
if (!s_config)
return -ENOMEM;
@@ -254,6 +254,7 @@ static int amd_create_sensor(struct devi
scnprintf(label_l[i], 10, "Esocket%u", (i - cpus));
}
+ s_config[i] = 0;
return 0;
}
