Forwarded: [PATCH] Testing ppl_conf for a null pointer

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Subject: [PATCH] Testing ppl_conf for a null pointer
Author: nsvatoslav515@xxxxxxxxx

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 50d05c7c76c9

Signed-off-by: Svyatoslav Nikolenko <nsvatoslav515@xxxxxxxxx>
---
 drivers/md/raid5-ppl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 7f8a9d3fd578..e54ed4e44b0f 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -535,6 +535,9 @@ void ppl_write_stripe_run(struct r5conf *conf)
 	struct ppl_log *log;
 	int i;
 
+	if (!ppl_conf)
+		return;
+
 	for (i = 0; i < ppl_conf->count; i++) {
 		log = &ppl_conf->child_logs[i];
 
-- 
2.47.3