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path: root/drivers/pci/switch
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Diffstat (limited to 'drivers/pci/switch')
-rw-r--r--drivers/pci/switch/switchtec.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 75be4fe22509..3d6f17ff2429 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -606,21 +606,20 @@ static ssize_t switchtec_dev_read(struct file *filp, char __user *data,
rc = copy_to_user(data, &stuser->return_code,
sizeof(stuser->return_code));
if (rc) {
- rc = -EFAULT;
- goto out;
+ mutex_unlock(&stdev->mrpc_mutex);
+ return -EFAULT;
}
data += sizeof(stuser->return_code);
rc = copy_to_user(data, &stuser->data,
size - sizeof(stuser->return_code));
if (rc) {
- rc = -EFAULT;
- goto out;
+ mutex_unlock(&stdev->mrpc_mutex);
+ return -EFAULT;
}
stuser_set_state(stuser, MRPC_IDLE);
-out:
mutex_unlock(&stdev->mrpc_mutex);
if (stuser->status == SWITCHTEC_MRPC_STATUS_DONE ||
@@ -1480,15 +1479,13 @@ static irqreturn_t switchtec_event_isr(int irq, void *dev)
static irqreturn_t switchtec_dma_mrpc_isr(int irq, void *dev)
{
struct switchtec_dev *stdev = dev;
- irqreturn_t ret = IRQ_NONE;
iowrite32(SWITCHTEC_EVENT_CLEAR |
SWITCHTEC_EVENT_EN_IRQ,
&stdev->mmio_part_cfg->mrpc_comp_hdr);
schedule_work(&stdev->mrpc_work);
- ret = IRQ_HANDLED;
- return ret;
+ return IRQ_HANDLED;
}
static int switchtec_init_isr(struct switchtec_dev *stdev)