diff options
| -rw-r--r-- | drivers/irqchip/irq-alpine-msi.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/irqchip/irq-alpine-msi.c b/drivers/irqchip/irq-alpine-msi.c index 7e379a6985a6..cf188e5feefc 100644 --- a/drivers/irqchip/irq-alpine-msi.c +++ b/drivers/irqchip/irq-alpine-msi.c @@ -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) |