linux-kernel - [PATCH v6 5/8] i3c: master: check for non null pointer

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Date:   Fri, 17 Apr 2020 18:22:07 +0200
From:   Parshuram Thombare <pthombar@...ence.com>
To:     <bbrezillon@...nel.org>, <vitor.soares@...opsys.com>
CC:     <pgaj@...ence.com>, <linux-i3c@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <mparab@...ence.com>,
        <praneeth@...com>, Parshuram Thombare <pthombar@...ence.com>
Subject: [PATCH v6 5/8] i3c: master: check for non null pointer

This patch add NULL check for struct i3c_generic_ibi_pool *pool
argument of function i3c_generic_ibi_free_pool.

Signed-off-by: Parshuram Thombare <pthombar@...ence.com>
---
 drivers/i3c/master.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 2690910d724c..19d4800ed573 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -2667,6 +2667,9 @@ void i3c_generic_ibi_free_pool(struct i3c_generic_ibi_pool *pool)
 	struct i3c_generic_ibi_slot *slot;
 	unsigned int nslots = 0;
 
+	if (!pool)
+		return;
+
 	while (!list_empty(&pool->free_slots)) {
 		slot = list_first_entry(&pool->free_slots,
 					struct i3c_generic_ibi_slot, node);
-- 
2.17.1