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Commit a550bb3d authored by Oded Gabbay's avatar Oded Gabbay
Browse files

amdkfd: Set *buffer_ptr to NULL in case of error 



In function acquire_packet_buffer() we may return -ENOMEM. In that case, we
should set the *buffer_ptr to NULL, so that calling functions which check the
*buffer_ptr value as a criteria for success, will know that
acquire_packet_buffer() failed.

Reviewed-by: default avatarAlexey Skidanov <alexey.skidanov@amd.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@amd.com>
parent c448a142

drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c

+7 −1
Original line number Diff line number Diff line
@@ -221,8 +221,14 @@ static int acquire_packet_buffer(struct kernel_queue *kq, 
							queue_size_dwords;



	if (packet_size_in_dwords >= queue_size_dwords ||

			packet_size_in_dwords >= available_size)

			packet_size_in_dwords >= available_size) {

		/*

		 * make sure calling functions know

		 * acquire_packet_buffer() failed

		 */

		*buffer_ptr = NULL;

		return -ENOMEM;

	}



	if (wptr + packet_size_in_dwords >= queue_size_dwords) {

		while (wptr > 0) {