[PATCH 5.10 37/40] media: msi2500: assign SPI bus number dynamically
From: Greg Kroah-Hartman
Date: Wed Dec 23 2020 - 10:34:39 EST
From: Antti Palosaari <crope@xxxxxx>
commit 9c60cc797cf72e95bb39f32316e9f0e5f85435f9 upstream.
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@xxxxxxxxxxxxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Antti Palosaari <crope@xxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/usb/msi2500/msi2500.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/usb/msi2500/msi2500.c
+++ b/drivers/media/usb/msi2500/msi2500.c
@@ -1230,7 +1230,7 @@ static int msi2500_probe(struct usb_inte
}
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);