diff options
Diffstat (limited to 'arch/ia64/kernel/iosapic.c')
| -rw-r--r-- | arch/ia64/kernel/iosapic.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index 91e6dc1e7ba..cfe4654838f 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -142,7 +142,7 @@ struct iosapic_rte_info { static struct iosapic_intr_info { struct list_head rtes; /* RTEs using this vector (empty => * not an IOSAPIC interrupt) */ - int count; /* # of RTEs that shares this vector */ + int count; /* # of registered RTEs */ u32 low32; /* current value of low word of * Redirection table entry */ unsigned int dest; /* destination CPU physical ID */ @@ -313,7 +313,7 @@ mask_irq (unsigned int irq) int rte_index; struct iosapic_rte_info *rte; - if (list_empty(&iosapic_intr_info[irq].rtes)) + if (!iosapic_intr_info[irq].count) return; /* not an IOSAPIC interrupt! */ /* set only the mask bit */ @@ -331,7 +331,7 @@ unmask_irq (unsigned int irq) int rte_index; struct iosapic_rte_info *rte; - if (list_empty(&iosapic_intr_info[irq].rtes)) + if (!iosapic_intr_info[irq].count) return; /* not an IOSAPIC interrupt! */ low32 = iosapic_intr_info[irq].low32 &= ~IOSAPIC_MASK; @@ -363,7 +363,7 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask) dest = cpu_physical_id(first_cpu(mask)); - if (list_empty(&iosapic_intr_info[irq].rtes)) + if (!iosapic_intr_info[irq].count) return; /* not an IOSAPIC interrupt */ set_irq_affinity_info(irq, dest, redir); @@ -542,7 +542,7 @@ iosapic_reassign_vector (int irq) { int new_irq; - if (!list_empty(&iosapic_intr_info[irq].rtes)) { + if (iosapic_intr_info[irq].count) { new_irq = create_irq(); if (new_irq < 0) panic("%s: out of interrupt vectors!\n", __FUNCTION__); @@ -560,7 +560,7 @@ iosapic_reassign_vector (int irq) } } -static struct iosapic_rte_info *iosapic_alloc_rte (void) +static struct iosapic_rte_info * __init_refok iosapic_alloc_rte (void) { int i; struct iosapic_rte_info *rte; @@ -677,7 +677,7 @@ get_target_cpu (unsigned int gsi, int irq) * In case of vector shared by multiple RTEs, all RTEs that * share the vector need to use the same destination CPU. */ - if (!list_empty(&iosapic_intr_info[irq].rtes)) + if (iosapic_intr_info[irq].count) return iosapic_intr_info[irq].dest; /* @@ -794,8 +794,9 @@ iosapic_register_intr (unsigned int gsi, err = register_intr(gsi, irq, IOSAPIC_LOWEST_PRIORITY, polarity, trigger); if (err < 0) { + spin_unlock(&irq_desc[irq].lock); irq = err; - goto unlock_all; + goto unlock_iosapic_lock; } /* @@ -811,7 +812,7 @@ iosapic_register_intr (unsigned int gsi, gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"), (polarity == IOSAPIC_POL_HIGH ? "high" : "low"), cpu_logical_id(dest), dest, irq_to_vector(irq)); - unlock_all: + spin_unlock(&irq_desc[irq].lock); unlock_iosapic_lock: spin_unlock_irqrestore(&iosapic_lock, flags); |