fbdev: chipsfb: Fix error codes in chipsfb_pci_init()

fbdev: chipsfb: Fix error codes in chipsfb_pci_init()

[ Upstream commit 03fa022c67c44ce92fe1e51a11ab411779fd4f94 ]

The error codes are not set on these error paths.

Fixes: 41539220b34c ("fbdev: Remove conflicting devices on PCI bus")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Y/yG+sm2mhdJeTZW@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>