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Subject[PATCH AUTOSEL 6.4 32/58] accel/habanalabs: fix mem leak in capture user mappings
Date
From: Moti Haimovski <mhaimovski@habana.ai>

[ Upstream commit 314a7ffd7c196b27eedd50cb7553029e17789b55 ]

This commit fixes a memory leak caused when clearing the user_mappings
info when a new context is opened immediately after user_mapping is
captured and a hard reset is performed.

Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/accel/habanalabs/common/habanalabs_drv.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/accel/habanalabs/common/habanalabs_drv.c b/drivers/accel/habanalabs/common/habanalabs_drv.c
index 1ec97da3dddb8..70fb2df9a93b8 100644
--- a/drivers/accel/habanalabs/common/habanalabs_drv.c
+++ b/drivers/accel/habanalabs/common/habanalabs_drv.c
@@ -13,6 +13,7 @@

#include <linux/pci.h>
#include <linux/module.h>
+#include <linux/vmalloc.h>

#define CREATE_TRACE_POINTS
#include <trace/events/habanalabs.h>
@@ -218,6 +219,7 @@ int hl_device_open(struct inode *inode, struct file *filp)

hl_debugfs_add_file(hpriv);

+ vfree(hdev->captured_err_info.page_fault_info.user_mappings);
memset(&hdev->captured_err_info, 0, sizeof(hdev->captured_err_info));
atomic_set(&hdev->captured_err_info.cs_timeout.write_enable, 1);
hdev->captured_err_info.undef_opcode.write_enable = true;
--
2.39.2
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