[PATCH 3/4] habanalabs: better error print for pin failure

[Oded Gabbay <ogabbay@kernel.org>]

Print the user given pointer and error code on failure to get user
pages for easier debugging.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/misc/habanalabs/common/memory.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index 43924e1c0315..a7a8984e6af2 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -1612,7 +1612,8 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size,
 
 	if (rc != npages) {
 		dev_err(hdev->dev,
-			"Failed to map host memory, user ptr probably wrong\n");
+			"Failed (%d) to pin host memory with user ptr 0x%llx\n",
+			rc, addr);
 		if (rc < 0)
 			goto destroy_pages;
 		npages = rc;
-- 
2.25.1