[PATCH v2] gpudev: free and unregister return gracefully if input pointer is NULL

[<eagostini@nvidia.com>]

From: Elena Agostini <eagostini@nvidia.com>

Signed-off-by: Elena Agostini <eagostini@nvidia.com>
---
 drivers/gpu/cuda/cuda.c | 4 ++--
 lib/gpudev/gpudev.c     | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/cuda/cuda.c b/drivers/gpu/cuda/cuda.c
index 24ae630d04..f68e2b20b9 100644
--- a/drivers/gpu/cuda/cuda.c
+++ b/drivers/gpu/cuda/cuda.c
@@ -765,7 +765,7 @@ cuda_mem_free(struct rte_gpu *dev, void *ptr)
 		return -ENODEV;
 
 	if (ptr == NULL)
-		return -EINVAL;
+		return 0;
 
 	hk = get_hash_from_ptr((void *)ptr);
 
@@ -804,7 +804,7 @@ cuda_mem_unregister(struct rte_gpu *dev, void *ptr)
 		return -ENODEV;
 
 	if (ptr == NULL)
-		return -EINVAL;
+		return 0;
 
 	hk = get_hash_from_ptr((void *)ptr);
 
diff --git a/lib/gpudev/gpudev.c b/lib/gpudev/gpudev.c
index 2b174d8bd5..b41c43016a 100644
--- a/lib/gpudev/gpudev.c
+++ b/lib/gpudev/gpudev.c
@@ -569,6 +569,9 @@ rte_gpu_mem_free(int16_t dev_id, void *ptr)
 {
 	struct rte_gpu *dev;
 
+	if (ptr == NULL)
+		return 0;
+
 	dev = gpu_get_by_id(dev_id);
 	if (dev == NULL) {
 		GPU_LOG(ERR, "free mem for invalid device ID %d", dev_id);
@@ -612,6 +615,9 @@ rte_gpu_mem_unregister(int16_t dev_id, void *ptr)
 {
 	struct rte_gpu *dev;
 
+	if (ptr == NULL)
+		return 0;
+
 	dev = gpu_get_by_id(dev_id);
 	if (dev == NULL) {
 		GPU_LOG(ERR, "unregister mem for invalid device ID %d", dev_id);
-- 
2.17.1