From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yang Yingliang <yangyingliang@huawei.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sasha Levin <sashal@kernel.org>,
balbi@ti.com, linux-usb@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 02/13] usb: musb: tusb6010: check return value after calling platform_get_resource()
Date: Tue, 9 Nov 2021 17:23:53 -0500 [thread overview]
Message-ID: <20211109222405.1236040-2-sashal@kernel.org> (raw)
In-Reply-To: <20211109222405.1236040-1-sashal@kernel.org>
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit 14651496a3de6807a17c310f63c894ea0c5d858e ]
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210915034925.2399823-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/musb/tusb6010.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 7e9204fdba4a8..fb4239b5286fb 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1120,6 +1120,11 @@ static int tusb_musb_init(struct musb *musb)
/* dma address for async dma */
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ pr_debug("no async dma resource?\n");
+ ret = -ENODEV;
+ goto done;
+ }
musb->async = mem->start;
/* dma address for sync dma */
--
2.33.0
next prev parent reply other threads:[~2021-11-09 22:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-09 22:23 [PATCH AUTOSEL 4.9 01/13] scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq() Sasha Levin
2021-11-09 22:23 ` Sasha Levin [this message]
2021-11-09 22:23 ` [PATCH AUTOSEL 4.9 03/13] arm64: dts: qcom: msm8916: Add unit name for /soc node Sasha Levin
2021-11-09 22:23 ` [PATCH AUTOSEL 4.9 04/13] scsi: advansys: Fix kernel pointer leak Sasha Levin
2021-11-09 22:23 ` [PATCH AUTOSEL 4.9 05/13] ARM: dts: omap: fix gpmc,mux-add-data type Sasha Levin
2021-11-09 22:23 ` [PATCH AUTOSEL 4.9 06/13] usb: host: ohci-tmio: check return value after calling platform_get_resource() Sasha Levin
2021-11-09 22:23 ` [PATCH AUTOSEL 4.9 07/13] tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc Sasha Levin
2021-11-09 22:23 ` [PATCH AUTOSEL 4.9 08/13] MIPS: sni: Fix the build Sasha Levin
2021-11-09 22:24 ` [PATCH AUTOSEL 4.9 09/13] scsi: target: Fix ordered tag handling Sasha Levin
2021-11-09 22:24 ` [PATCH AUTOSEL 4.9 10/13] scsi: target: Fix alua_tg_pt_gps_count tracking Sasha Levin
2021-11-09 22:24 ` [PATCH AUTOSEL 4.9 11/13] powerpc/5200: dts: fix memory node unit name Sasha Levin
2021-11-09 22:24 ` [PATCH AUTOSEL 4.9 12/13] ALSA: gus: fix null pointer dereference on pointer block Sasha Levin
2021-11-09 22:24 ` [PATCH AUTOSEL 4.9 13/13] powerpc/dcr: Use cmplwi instead of 3-argument cmpli Sasha Levin
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