habanalabs: rephrase device out-of-memory message

The out of memory message is rephrased to more subtle expression as out
of memory may be caused by the user in case of, for example, greedy
allocation.

In addition the user is also being notified by an error code.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/habanalabs/common/memory.c

@@ -117,7 +117,7 @@ static int alloc_device_memory(struct hl_ctx *ctx, struct hl_mem_in *args,
 			paddr = gen_pool_alloc(vm->dram_pg_pool, total_size);
 		if (!paddr) {
 			dev_err(hdev->dev,
-				"failed to allocate %llu contiguous pages with total size of %llu\n",
+				"Cannot allocate %llu contiguous pages with total size of %llu\n",
 				num_pgs, total_size);
 			return -ENOMEM;
 		}
@@ -156,9 +156,10 @@ static int alloc_device_memory(struct hl_ctx *ctx, struct hl_mem_in *args,
 			else
 				phys_pg_pack->pages[i] = gen_pool_alloc(vm->dram_pg_pool,
 									page_size);
+
 			if (!phys_pg_pack->pages[i]) {
 				dev_err(hdev->dev,
-					"Failed to allocate device memory (out of memory)\n");
+					"Cannot allocate device memory (out of memory)\n");
 				rc = -ENOMEM;
 				goto page_err;
 			}