blob: 363b02f3e823d586ffbdb75a9dfaa722afdf9873 [file] [log] [blame]
From b0c613cae07498255033f766d5a3d4d3cdd833ec Mon Sep 17 00:00:00 2001
From: Oded Gabbay <>
Date: Thu, 23 Jan 2020 00:43:06 +0200
Subject: [PATCH] habanalabs: patched cb equals user cb in device memset
commit cf01514c5c6efa2d521d35e68dff2e0674d08e91 upstream.
During device memory memset, the driver allocates and use a CB (command
buffer). To reuse existing code, it keeps a pointer to the CB in two
variables, user_cb and patched_cb. Therefore, there is no need to "put"
both the user_cb and patched_cb, as it will cause an underflow of the
refcnt of the CB.
Signed-off-by: Oded Gabbay <>
Signed-off-by: Paul Gortmaker <>
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 369a5dfbb9ae..86f7b6dcfa76 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -4532,8 +4532,6 @@ static int goya_memset_device_memory(struct hl_device *hdev, u64 addr, u32 size,
rc = goya_send_job_on_qman0(hdev, job);
- hl_cb_put(job->patched_cb);
hl_debugfs_remove_job(hdev, job);