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authorAntti Palosaari <crope@iki.fi>2019-08-17 03:12:10 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-11-27 08:12:11 +0100
commit9c60cc797cf72e95bb39f32316e9f0e5f85435f9 (patch)
treec734432c4bdfc5a912895696ccc46e1a28aaa0d6 /drivers/media/usb/msi2500
parentmedia: usb: msi2500: Fix a possible null-pointer dereference in msi2500_stop_... (diff)
downloadlinux-9c60cc797cf72e95bb39f32316e9f0e5f85435f9.tar.xz
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media: msi2500: assign SPI bus number dynamically
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>
Diffstat (limited to 'drivers/media/usb/msi2500')
-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 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);