[PATCH 5.10 063/103] i2c: i801: Fix the i2c-mux gpiod_lookup_table not being properly terminated
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-01-15 12:40:45
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From: Hans de Goede <redacted>
commit 0b3ea2a06de1f52ea30865e227e109a5fd3b6214 upstream.
gpiod_add_lookup_table() expects the gpiod_lookup_table->table passed to
it to be terminated with a zero-ed out entry.
So we need to allocate one more entry then we will use.
Fixes: d308dfbf62ef ("i2c: mux/i801: Switch to use descriptor passing")
Signed-off-by: Hans de Goede <redacted>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Jean Delvare <redacted>
Reviewed-by: Linus Walleij <redacted>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/i2c/busses/i2c-i801.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c@@ -1449,7 +1449,7 @@ static int i801_add_mux(struct i801_priv /* Register GPIO descriptor lookup table */ lookup = devm_kzalloc(dev, - struct_size(lookup, table, mux_config->n_gpios), + struct_size(lookup, table, mux_config->n_gpios + 1), GFP_KERNEL); if (!lookup) return -ENOMEM;