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irqchip/alpine-msi: Convert to lock guards

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Convert lock/unlock pairs to guards and tidy up the code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/7886b9595aaf8e102f79364784f68dec9c49b023.1750860131.git.namcao@linutronix.de
This commit is contained in:
Thomas Gleixner
2025-07-03 15:49:25 +02:00
parent 6e44ac4112
commit 71476f915f
1 changed files with 4 additions and 14 deletions
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drivers/irqchip/irq-alpine-msi.c
+4 -14
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@@ -60,19 +60,12 @@ static int alpine_msix_allocate_sgi(struct alpine_msix_data *priv, int num_req)
{
int first;
spin_lock(&priv->msi_map_lock);
first = bitmap_find_next_zero_area(priv->msi_map, priv->num_spis, 0,
num_req, 0);
if (first >= priv->num_spis) {
spin_unlock(&priv->msi_map_lock);
guard(spinlock)(&priv->msi_map_lock);
first = bitmap_find_next_zero_area(priv->msi_map, priv->num_spis, 0, num_req, 0);
if (first >= priv->num_spis)
return -ENOSPC;
}
bitmap_set(priv->msi_map, first, num_req);
spin_unlock(&priv->msi_map_lock);
return priv->spi_first + first;
}
@@ -80,11 +73,8 @@ static void alpine_msix_free_sgi(struct alpine_msix_data *priv, unsigned int sgi
{
int first = sgi - priv->spi_first;
spin_lock(&priv->msi_map_lock);
guard(spinlock)(&priv->msi_map_lock);
bitmap_clear(priv->msi_map, first, num_req);
spin_unlock(&priv->msi_map_lock);
}
static void alpine_msix_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)