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Subject: media: msi2500: assign SPI bus number dynamically Author: Antti Palosaari crope@iki.fi Date: Sat Aug 17 03:12:10 2019 +0200

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

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);