diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-06-26 16:49:05 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-07-03 15:49:25 +0200 |
| commit | 71476f915f92cd9fb209f8729d700703ec3c36bc (patch) | |
| tree | 19f8d0e3a6da3c8391264a684ec7562bc5473eb1 | |
| parent | 6e44ac411255e0a48674862b53f2b1b47148c209 (diff) | |
irqchip/alpine-msi: Convert to lock guards
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
| -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) |