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bus: stm32_firewall: fix off by one in stm32_firewall_get_firewall()

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The "nb_firewall" variable is the number of elements in the firewall[]
array, which is allocated in stm32_firewall_populate_bus().  So change
this > comparison to >= to prevent an out of bound access.

Fixes: 5c9668cfc6 ("firewall: introduce stm32_firewall framework")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Dan Carpenter 2024-04-12 11:25:37 +03:00 committed by Alexandre Torgue
parent 2eeb74c449
commit e4500d7525
1 changed files with 1 additions and 1 deletions
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2
drivers/bus/stm32_firewall.c
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@ -53,7 +53,7 @@ int stm32_firewall_get_firewall(struct device_node *np, struct stm32_firewall *f
return err;
}
if (j > nb_firewall) {
if (j >= nb_firewall) {
pr_err("Too many firewall controllers");
of_node_put(provider);
return -EINVAL;