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vesa: Fix tracking of device opens / closes

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* Don't raise the open_count when the open fails
This commit is contained in:
Alexander von Gluck IV 2014-01-27 21:04:13 +00:00
parent 3347bc1431
commit 87784cafb8
1 changed files with 6 additions and 2 deletions
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8
src/add-ons/kernel/drivers/graphics/vesa/device.cpp
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@ -51,13 +51,12 @@ device_open(const char* name, uint32 flags, void** _cookie)
return B_BAD_VALUE;
vesa_info* info = gDeviceInfo[id];
*_cookie = info;
mutex_lock(&gLock);
status_t status = B_OK;
if (info->open_count++ == 0) {
if (info->open_count == 0) {
// this device has been opened for the first time, so
// we allocate needed resources and initialize the structure
if (status == B_OK)
@ -66,6 +65,11 @@ device_open(const char* name, uint32 flags, void** _cookie)
info->id = id;
}
if (status == B_OK) {
info->open_count++;
*_cookie = info;
}
mutex_unlock(&gLock);
return status;
}