From: Oded Gabbay <oded.gabbay@gmail.com>
To: linux-kernel@vger.kernel.org, oshpigelman@habana.ai, ttayar@habana.ai
Cc: gregkh@linuxfoundation.org
Subject: [PATCH] habanalabs: patched cb equals user cb in device memset
Date: Fri, 24 Jan 2020 10:18:59 +0200 [thread overview]
Message-ID: <20200124081859.23849-1-oded.gabbay@gmail.com> (raw)
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 <oded.gabbay@gmail.com>
---
drivers/misc/habanalabs/goya/goya.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 382331cc00d3..74785ccd2cb1 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -4693,8 +4693,6 @@ static int goya_memset_device_memory(struct hl_device *hdev, u64 addr, u64 size,
rc = goya_send_job_on_qman0(hdev, job);
- hl_cb_put(job->patched_cb);
-
hl_debugfs_remove_job(hdev, job);
kfree(job);
cb->cs_cnt--;
--
2.17.1
reply other threads:[~2020-01-24 8:19 UTC|newest]
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