From 9c60cc797cf72e95bb39f32316e9f0e5f85435f9 Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Sat, 17 Aug 2019 03:12:10 +0200
Subject: [PATCH] media: msi2500: assign SPI bus number dynamically
Git-commit: 9c60cc797cf72e95bb39f32316e9f0e5f85435f9
Patch-mainline: v5.11-rc1
References: git-fixes
SPI bus number must be assigned dynamically for each device, otherwise it
will crash when multiple devices are plugged to system.
Reported-and-tested-by: syzbot+c60ddb60b685777d9d59@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/media/usb/msi2500/msi2500.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/msi2500/msi2500.c b/drivers/media/usb/msi2500/msi2500.c
index 269f3ef34bc9..63882a5248ae 100644
--- a/drivers/media/usb/msi2500/msi2500.c
+++ b/drivers/media/usb/msi2500/msi2500.c
@@ -1230,7 +1230,7 @@ static int msi2500_probe(struct usb_interface *intf,
}
dev->master = master;
- master->bus_num = 0;
+ master->bus_num = -1;
master->num_chipselect = 1;
master->transfer_one_message = msi2500_transfer_one_message;
spi_master_set_devdata(master, dev);
--
2.26.2