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usb_modeswitch.cpp: fix use after free.

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Signed-off-by: Adrien Destugues <[email protected]>

Fixes #13185
This commit is contained in:
Murai Takashi
2017-01-15 12:33:10 +01:00
committed by Adrien Destugues
parent baf9ae1d47
commit a1fdbe5bb2
1 changed files with 5 additions and 3 deletions
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src/add-ons/kernel/drivers/common/usb_modeswitch.cpp
+5 -3
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@@ -531,11 +531,13 @@ my_device_added(usb_device newDevice, void **cookie)
mutex_init(&device->lock, DRIVER_NAME " device lock");
device->notify = create_sem(0, DRIVER_NAME " callback notify");
if (device->notify < B_OK) {
sem_id id = create_sem(0, DRIVER_NAME " callback notify");
if (id < B_OK) {
mutex_destroy(&device->lock);
free(device);
return device->notify;
return id;
} else {
device->notify = id;
}
mutex_lock(&gDeviceListLock);