patch 'dma/idxd: verify strdup return' has been queued to stable release 21.11.7

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 03/11/24. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/93cc8c419ff1ea0dc30c2045b75f86ade33c1f1e

Thanks.

Kevin

---
>From 93cc8c419ff1ea0dc30c2045b75f86ade33c1f1e Mon Sep 17 00:00:00 2001
From: Chengwen Feng <fengchengwen at huawei.com>
Date: Fri, 10 Nov 2023 10:01:06 +0000
Subject: [PATCH] dma/idxd: verify strdup return

[ upstream commit 83cfa2cbf3f3fb78e2f2dd228109adcb38e18a5c ]

Add verify strdup return value logic.

Fixes: e888bb1278c6 ("dma/idxd: add bus device probing")

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 drivers/dma/idxd/idxd_bus.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/idxd/idxd_bus.c b/drivers/dma/idxd/idxd_bus.c
index 594b3e1d5a..7aaccd50f4 100644
--- a/drivers/dma/idxd/idxd_bus.c
+++ b/drivers/dma/idxd/idxd_bus.c
@@ -249,7 +249,13 @@ is_for_this_process_use(const char *name)
 {
 	char *runtime_dir = strdup(rte_eal_get_runtime_dir());
-	char *prefix = basename(runtime_dir);
-	int prefixlen = strlen(prefix);
 	int retval = 0;
+	int prefixlen;
+	char *prefix;
+
+	if (runtime_dir == NULL)
+		return retval;
+
+	prefix = basename(runtime_dir);
+	prefixlen = strlen(prefix);
 
 	if (strncmp(name, "dpdk_", 5) == 0)
-- 
2.43.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-03-05 14:08:55.084369232 +0000
+++ 0015-dma-idxd-verify-strdup-return.patch	2024-03-05 14:08:54.625520699 +0000
@@ -1 +1 @@
-From 83cfa2cbf3f3fb78e2f2dd228109adcb38e18a5c Mon Sep 17 00:00:00 2001
+From 93cc8c419ff1ea0dc30c2045b75f86ade33c1f1e Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 83cfa2cbf3f3fb78e2f2dd228109adcb38e18a5c ]
+
@@ -9 +10,0 @@
-Cc: stable at dpdk.org
@@ -17 +18 @@
-index 3b2d4c2b65..ba8076715d 100644
+index 594b3e1d5a..7aaccd50f4 100644
@@ -20 +21 @@
-@@ -262,7 +262,13 @@ is_for_this_process_use(struct rte_dsa_device *dev, const char *name)
+@@ -249,7 +249,13 @@ is_for_this_process_use(const char *name)