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| author |   Tony Lindgren <tony@atomide.com> | 2020-06-16 09:25:03 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2020-06-16 09:25:03 -0700 |
| commit | 07c7b547a79605f1041d55b84d91a4a4d9c5b363 (patch) | |
| tree | d98c1adacc8c65b475c325b427e54b8205b0013d /drivers/fpga/dfl.c | |
| parent | Revert "bus: ti-sysc: Increase max softreset wait" (diff) | |
| parent | Linux 5.8-rc1 (diff) | |
| download | wireguard-linux-07c7b547a79605f1041d55b84d91a4a4d9c5b363.tar.xz wireguard-linux-07c7b547a79605f1041d55b84d91a4a4d9c5b363.zip | |
Merge tag 'v5.8-rc1' into fixes
Linux 5.8-rc1
Diffstat (limited to 'drivers/fpga/dfl.c')
| -rw-r--r-- | drivers/fpga/dfl.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index 96a2b8274a33..990994874bf1 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -1079,6 +1079,7 @@ static int __init dfl_fpga_init(void) */ int dfl_fpga_cdev_release_port(struct dfl_fpga_cdev *cdev, int port_id) { + struct dfl_feature_platform_data *pdata; struct platform_device *port_pdev; int ret = -ENODEV; @@ -1093,7 +1094,11 @@ int dfl_fpga_cdev_release_port(struct dfl_fpga_cdev *cdev, int port_id) goto put_dev_exit; } - ret = dfl_feature_dev_use_begin(dev_get_platdata(&port_pdev->dev)); + pdata = dev_get_platdata(&port_pdev->dev); + + mutex_lock(&pdata->lock); + ret = dfl_feature_dev_use_begin(pdata, true); + mutex_unlock(&pdata->lock); if (ret) goto put_dev_exit; @@ -1120,6 +1125,7 @@ EXPORT_SYMBOL_GPL(dfl_fpga_cdev_release_port); */ int dfl_fpga_cdev_assign_port(struct dfl_fpga_cdev *cdev, int port_id) { + struct dfl_feature_platform_data *pdata; struct platform_device *port_pdev; int ret = -ENODEV; @@ -1138,7 +1144,12 @@ int dfl_fpga_cdev_assign_port(struct dfl_fpga_cdev *cdev, int port_id) if (ret) goto put_dev_exit; - dfl_feature_dev_use_end(dev_get_platdata(&port_pdev->dev)); + pdata = dev_get_platdata(&port_pdev->dev); + + mutex_lock(&pdata->lock); + dfl_feature_dev_use_end(pdata); + mutex_unlock(&pdata->lock); + cdev->released_port_num--; put_dev_exit: put_device(&port_pdev->dev); |