*/
unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num)
{
- unsigned long bit, i;
+ unsigned long bit, i, flags;
if (!iv->avail || num == 0)
return -1UL;
- spin_lock(&iv->lock);
+ spin_lock_irqsave(&iv->lock, flags);
bit = find_first_bit_inv(iv->avail, iv->bits);
while (bit + num <= iv->bits) {
for (i = 1; i < num; i++)
}
if (bit + num > iv->bits)
bit = -1UL;
- spin_unlock(&iv->lock);
+ spin_unlock_irqrestore(&iv->lock, flags);
return bit;
-
}
EXPORT_SYMBOL(airq_iv_alloc);
*/
void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num)
{
- unsigned long i;
+ unsigned long i, flags;
if (!iv->avail || num == 0)
return;
- spin_lock(&iv->lock);
+ spin_lock_irqsave(&iv->lock, flags);
for (i = 0; i < num; i++) {
/* Clear (possibly left over) interrupt bit */
clear_bit_inv(bit + i, iv->vector);
while (iv->end > 0 && !test_bit_inv(iv->end - 1, iv->avail))
iv->end--;
}
- spin_unlock(&iv->lock);
+ spin_unlock_irqrestore(&iv->lock, flags);
}
EXPORT_SYMBOL(airq_iv_free);