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authorAntti Palosaari <crope@iki.fi>2019-08-17 03:12:10 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-12-29 13:42:34 +0100
commite1a32b88ae7825dc7a5fc649de680dd8e34634de (patch)
tree87ab77a36a6bc7396aaf17c0cbb2a14843c78d73 /drivers/media/usb
parentc743c27185cfc160d769d0bc89ace28e9a9b9171 (diff)
media: msi2500: assign SPI bus number dynamically
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>
Diffstat (limited to 'drivers/media/usb')
-rw-r--r--drivers/media/usb/msi2500/msi2500.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/msi2500/msi2500.c b/drivers/media/usb/msi2500/msi2500.c
index e06a21a4fbd9..322238d9aa71 100644
--- a/drivers/media/usb/msi2500/msi2500.c
+++ b/drivers/media/usb/msi2500/msi2500.c
@@ -1254,7 +1254,7 @@ 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);