From: Elena Agostini <eagostini@nvidia.com>
Date: Tue, 21 Dec 2021 20:50:42 +0000 (+0000)
Subject: gpu/cuda: fix memory list cleanup
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=98ddd04c6aa5b2953709f2707aeaba0461a9ef28;p=dpdk.git

gpu/cuda: fix memory list cleanup

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")
Cc: stable@dpdk.org

Signed-off-by: Elena Agostini <eagostini@nvidia.com>
---

diff --git a/drivers/gpu/cuda/cuda.c b/drivers/gpu/cuda/cuda.c
index 882df08e56..d3a7234a09 100644
--- a/drivers/gpu/cuda/cuda.c
+++ b/drivers/gpu/cuda/cuda.c
@@ -437,9 +437,11 @@ 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;