drm/bochs: Return error from correct pointer

In probe, return the error code from the variable bochs, not dev. The
variable dev has not been initialized at this point. In the case of an
allocation error, the returned value would have been undefined.

Reported-by: Kees Bakker <[email protected]>
Closes: https://lore.kernel.org/dri-devel/[email protected]/
Signed-off-by: Thomas Zimmermann <[email protected]>
Fixes: 04826f5 ("drm/bochs: Allocate DRM device in struct bochs_device")
Cc: Thomas Zimmermann <[email protected]>
Cc: Gerd Hoffmann <[email protected]>
Cc: [email protected]
Reviewed-by: Javier Martinez Canillas <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: Thomas Zimmermann

drivers/gpu/drm/tiny/bochs.c

@@ -717,7 +717,7 @@ static int bochs_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent
 
 	bochs = devm_drm_dev_alloc(&pdev->dev, &bochs_driver, struct bochs_device, dev);
 	if (IS_ERR(bochs))
-		return PTR_ERR(dev);
+		return PTR_ERR(bochs);
 	dev = &bochs->dev;
 
 	ret = pcim_enable_device(pdev);