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nvidia-modeset: free the semaphore surface callback record when the waiter is already signalled #1368

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nvidia-modeset: free the semaphore surface callback record when the waiter is already signalled #1368

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5 changes: 5 additions & 0 deletions src/nvidia-modeset/kapi/src/nvkms-kapi-sync.c
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Original file line number Diff line number Diff line change
Expand Up @@ -445,6 +445,11 @@ nvKmsKapiRegisterSemaphoreSurfaceCallback(
}
return NVKMS_KAPI_REG_WAITER_SUCCESS;
case NVOS_STATUS_ERROR_ALREADY_SIGNALLED:
/*
* No waiter was registered, so neither the callback nor
* unregisterSemaphoreSurfaceCallback() will ever free cb.
*/
nvKmsKapiFree(cb);
return NVKMS_KAPI_REG_WAITER_ALREADY_SIGNALLED;
default:
break;
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