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| author | Bin Meng <bmeng@tinylab.org> | 2022-12-11 09:54:20 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-12-17 06:12:21 +0300 |
| commit | 34da6638ad7b3d8c1834dffe5cd2629aa748efaf (patch) | |
| tree | 71cc898afbcf1b7f40532fb6524effffd9232bb9 | |
| parent | 7a3354ac1591201c1f2380b79c9c3c75075d312c (diff) | |
| download | opensbi-34da6638ad7b3d8c1834dffe5cd2629aa748efaf.tar.xz | |
lib: utils/irqchip: plic: Fix the off-by-one error in priority save/restore helpers
Interrupt source 0 is reserved. Hence the irq should start from 1.
Fixes: 2b79b694a805 ("lib: irqchip/plic: Add priority save/restore helpers")
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | lib/utils/irqchip/plic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/utils/irqchip/plic.c b/lib/utils/irqchip/plic.c index 73d7788..4df9020 100644 --- a/lib/utils/irqchip/plic.c +++ b/lib/utils/irqchip/plic.c @@ -38,13 +38,13 @@ static void plic_set_priority(const struct plic_data *plic, u32 source, u32 val) void plic_priority_save(const struct plic_data *plic, u8 *priority) { - for (u32 i = 0; i < plic->num_src; i++) + for (u32 i = 1; i <= plic->num_src; i++) priority[i] = plic_get_priority(plic, i); } void plic_priority_restore(const struct plic_data *plic, const u8 *priority) { - for (u32 i = 0; i < plic->num_src; i++) + for (u32 i = 1; i <= plic->num_src; i++) plic_set_priority(plic, i, priority[i]); } |