diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 4d56d214fa05..ebffb53c036c 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -441,6 +441,7 @@ static int d40_lcla_id_get(struct d40_chan *d40c, pool->base + d40c->phy_chan->num * 1024; int i; int lli_per_log = d40c->base->plat_data->llis_per_log; + unsigned long flags; if (d40c->lcla.src_id >= 0 && d40c->lcla.dst_id >= 0) return 0; @@ -448,7 +449,7 @@ static int d40_lcla_id_get(struct d40_chan *d40c, if (pool->num_blocks > 32) return -EINVAL; - spin_lock(&pool->lock); + spin_lock_irqsave(&pool->lock, flags); for (i = 0; i < pool->num_blocks; i++) { if (!(pool->alloc_map[d40c->phy_chan->num] & (0x1 << i))) { @@ -477,10 +478,10 @@ static int d40_lcla_id_get(struct d40_chan *d40c, d40c->lcla.src = lcla_lidx_base + src_id * lli_per_log + 1; - spin_unlock(&pool->lock); + spin_unlock_irqrestore(&pool->lock, flags); return 0; err: - spin_unlock(&pool->lock); + spin_unlock_irqrestore(&pool->lock, flags); return -EINVAL; } @@ -488,15 +489,16 @@ static void d40_lcla_id_put(struct d40_chan *d40c, struct d40_lcla_pool *pool, int id) { + unsigned long flags; if (id < 0) return; d40c->lcla.src_id = -1; d40c->lcla.dst_id = -1; - spin_lock(&pool->lock); + spin_lock_irqsave(&pool->lock, flags); pool->alloc_map[d40c->phy_chan->num] &= (~(0x1 << id)); - spin_unlock(&pool->lock); + spin_unlock_irqrestore(&pool->lock, flags); } static int d40_channel_execute_command(struct d40_chan *d40c, @@ -1984,8 +1986,6 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan, if (d40d == NULL) return NULL; - memset(d40d, 0, sizeof(struct d40_desc)); - if (d40c->log_num != D40_PHY_CHAN) err = d40_prep_slave_sg_log(d40d, d40c, sgl, sg_len, direction, dma_flags); |