habanalabs: better error print for pin failure

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>

diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index 43924e1c0315159b2dbac831ea0eb52d8763dbdf..a7a8984e6af2abbbfd1c8df8e685bb1c47393492 100644 (file)
--- 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;