staging: sm750fb: fixing function return with lock held
authorPrasant Jalan <prasant.jalan@gmail.com>
Fri, 31 Mar 2017 19:10:01 +0000 (00:40 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 8 Apr 2017 15:00:51 +0000 (17:00 +0200)
lynxfb_suspend() & lynxfb_resume() return on errors while holding
console_lock.

Adding 'goto' such that proper cleanups can be done before returning
from function and therefore console_lock can be released before
returning.

Signed-off-by: Prasant Jalan <prasant.jalan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/sm750fb/sm750.c

index c618c5604ccae50f0176f2e0c2104b1000d85d74..445c68d4f834140cea86eca70f07cec8f11a94ce 100644 (file)
@@ -419,7 +419,7 @@ static int lynxfb_suspend(struct pci_dev *pdev, pm_message_t mesg)
                if (ret) {
                        dev_err(&pdev->dev,
                                "error:%d occurred in pci_save_state\n", ret);
-                       return ret;
+                       goto lynxfb_suspend_err;
                }
 
                ret = pci_set_power_state(pdev, pci_choose_state(pdev, mesg));
@@ -427,11 +427,13 @@ static int lynxfb_suspend(struct pci_dev *pdev, pm_message_t mesg)
                        dev_err(&pdev->dev,
                                "error:%d occurred in pci_set_power_state\n",
                                ret);
-                       return ret;
+                       goto lynxfb_suspend_err;
                }
        }
 
        pdev->dev.power.power_state = mesg;
+
+lynxfb_suspend_err:
        console_unlock();
        return ret;
 }
@@ -456,7 +458,7 @@ static int lynxfb_resume(struct pci_dev *pdev)
        if (ret) {
                dev_err(&pdev->dev,
                        "error:%d occurred in pci_set_power_state\n", ret);
-               return ret;
+               goto lynxfb_resume_err;
        }
 
        if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
@@ -466,7 +468,7 @@ static int lynxfb_resume(struct pci_dev *pdev)
                        dev_err(&pdev->dev,
                                "error:%d occurred in pci_enable_device\n",
                                ret);
-                       return ret;
+                       goto lynxfb_resume_err;
                }
                pci_set_master(pdev);
        }
@@ -498,6 +500,8 @@ static int lynxfb_resume(struct pci_dev *pdev)
        }
 
        pdev->dev.power.power_state.event = PM_EVENT_RESUME;
+
+lynxfb_resume_err:
        console_unlock();
        return ret;
 }