| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 093/346] media: msi2500: assign SPI bus number dynamically | Date | Mon, 28 Dec 2020 13:46:52 +0100 |
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From: Antti Palosaari <crope@iki.fi>
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@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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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 @@ -1250,7 +1250,7 @@ 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);
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