shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 19:08:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

USB: sisusbvga: fix oops in error path of sisusb_probe

Browse Source 
commit 9a5729f68d upstream.

The pointer used to log a failure of usb_register_dev() must
be set before the error is logged.

v2: fix that minor is not available before registration

Signed-off-by: oliver Neukum <oneukum@suse.com>
Reported-by: syzbot+a0cbdbd6d169020c8959@syzkaller.appspotmail.com
Fixes: 7b5cd5fefb ("USB: SisUSB2VGA: Convert printk to dev_* macros")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oliver Neukum
2019-05-09 14:41:50 +02:00
committed by Chris
parent 6a6adc374b
commit 3d688ec4e9
1 changed files with 8 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/usb/misc/sisusbvga/sisusb.c
View File

@@ -3041,6 +3041,13 @@ static int sisusb_probe(struct usb_interface *intf,
mutex_init(&(sisusb->lock));
sisusb->sisusb_dev = dev;
sisusb->vrambase = SISUSB_PCI_MEMBASE;
sisusb->mmiobase = SISUSB_PCI_MMIOBASE;
sisusb->mmiosize = SISUSB_PCI_MMIOSIZE;
sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
/* Everything else is zero */
/* Register device */
retval = usb_register_dev(intf, &usb_sisusb_class);
if (retval) {
@@ -3051,13 +3058,7 @@ static int sisusb_probe(struct usb_interface *intf,
goto error_1;
}
sisusb->sisusb_dev = dev;
sisusb->minor = intf->minor;
sisusb->vrambase = SISUSB_PCI_MEMBASE;
sisusb->mmiobase = SISUSB_PCI_MMIOBASE;
sisusb->mmiosize = SISUSB_PCI_MMIOSIZE;
sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
/* Everything else is zero */
sisusb->minor = intf->minor;
/* Allocate buffers */
sisusb->ibufsize = SISUSB_IBUF_SIZE;