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staging: xgifb: release and unmap I/O memory 

Release and unmap memory on probe error paths and when the module
is removed.

The patch enables unloading and reloading the xgifb module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Aaro Koskinen 2011-02-17 23:29:15 +02:00 committed by Greg Kroah-Hartman
parent d80aaa01ae
commit 5c0ef2ac36
1 changed files with 14 additions and 3 deletions
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17
drivers/staging/xgifb/XGI_main_26.c
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@ -3103,9 +3103,8 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
if (!request_mem_region(xgi_video_info.mmio_base, XGIfb_mmio_size, "XGIfb MMIO")) {
printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve MMIO region\n");
release_mem_region(xgi_video_info.video_base, xgi_video_info.video_size);
ret = -ENODEV;
goto error;
goto error_0;
}
xgi_video_info.video_vbase = XGIhw_ext.pjVideoMemoryAddress =
@ -3394,7 +3393,7 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
if (register_framebuffer(fb_info) < 0) {
ret = -EINVAL;
goto error;
goto error_1;
}
XGIfb_registered = 1;
@ -3408,6 +3407,13 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
return 0;
error_1:
iounmap(xgi_video_info.mmio_vbase);
iounmap(xgi_video_info.video_vbase);
release_mem_region(xgi_video_info.mmio_base, XGIfb_mmio_size);
error_0:
release_mem_region(xgi_video_info.video_base,
xgi_video_info.video_size);
error:
vfree(XGIhw_ext.pjVirtualRomBase);
vfree(XGIhw_ext.pSR);
@ -3425,6 +3431,11 @@ static void __devexit xgifb_remove(struct pci_dev *pdev)
/* Unregister the framebuffer */
/* if (xgi_video_info.registered) { */
unregister_framebuffer(fb_info);
iounmap(xgi_video_info.mmio_vbase);
iounmap(xgi_video_info.video_vbase);
release_mem_region(xgi_video_info.mmio_base, XGIfb_mmio_size);
release_mem_region(xgi_video_info.video_base,
xgi_video_info.video_size);
vfree(XGIhw_ext.pjVirtualRomBase);
framebuffer_release(fb_info);
/* } */