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* [PATCH v1] gpu/cuda: fix memory list cleanup
@ 2021-12-21 20:50 eagostini
  2022-01-20 13:15 ` Thomas Monjalon
  0 siblings, 1 reply; 2+ messages in thread
From: eagostini @ 2021-12-21 20:50 UTC (permalink / raw)
  To: dev; +Cc: Elena Agostini

From: Elena Agostini <eagostini@nvidia.com>

Memory list cleanup (called by cuda_mem_free)
was not properly set the new head of the list
when deleting an entry.

Fixes: 1306a73b1958 ("gpu/cuda: introduce CUDA driver")

Signed-off-by: Elena Agostini <eagostini@nvidia.com>
---
 drivers/gpu/cuda/cuda.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/cuda/cuda.c b/drivers/gpu/cuda/cuda.c
index 49da215af4..afd4b92a93 100644
--- a/drivers/gpu/cuda/cuda.c
+++ b/drivers/gpu/cuda/cuda.c
@@ -447,9 +447,11 @@ mem_list_del_item(cuda_ptr_key pk)
 		return -EINVAL;
 
 	/* if key is in head */
-	if (mem_alloc_list_cur->prev == NULL)
+	if (mem_alloc_list_cur->prev == NULL) {
 		mem_alloc_list_head = mem_alloc_list_cur->next;
-	else {
+		if (mem_alloc_list_head != NULL)
+			mem_alloc_list_head->prev = NULL;
+	} else {
 		mem_alloc_list_cur->prev->next = mem_alloc_list_cur->next;
 		if (mem_alloc_list_cur->next != NULL)
 			mem_alloc_list_cur->next->prev = mem_alloc_list_cur->prev;
-- 
2.17.1


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2021-12-21 20:50 [PATCH v1] gpu/cuda: fix memory list cleanup eagostini
2022-01-20 13:15 ` Thomas Monjalon

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