[PATCH] USB: net2280: set driver data before it is used
This patch (as671) fixes a bug in the error pathway for the net2280
probe routine. A failure during probe will cause the driver to call
pci_get_drvdata before the corresponding pci_set_drvdata has been set.
The patch also does a kzalloc conversion.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index b2d507f..0b92934 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -2833,13 +2833,13 @@
}
/* alloc, and start init */
- dev = kmalloc (sizeof *dev, SLAB_KERNEL);
+ dev = kzalloc (sizeof *dev, SLAB_KERNEL);
if (dev == NULL){
retval = -ENOMEM;
goto done;
}
- memset (dev, 0, sizeof *dev);
+ pci_set_drvdata (pdev, dev);
spin_lock_init (&dev->lock);
dev->pdev = pdev;
dev->gadget.ops = &net2280_ops;
@@ -2952,7 +2952,6 @@
dev->chiprev = get_idx_reg (dev->regs, REG_CHIPREV) & 0xffff;
/* done */
- pci_set_drvdata (pdev, dev);
INFO (dev, "%s\n", driver_desc);
INFO (dev, "irq %s, pci mem %p, chip rev %04x\n",
bufp, base, dev->chiprev);
