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staging/sm7xxfb: return a proper err for smtc_alloc_fb_info failure

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as smtc_alloc_fb_info can fail, but we are returning the 0,
how? because the pci_enable_device succeeded, which makes the probe
return 0, and may cause panics or some strange problems at remove
when driver unloaded by modprobe -r.

so return err properly as smtc_alloc_fb_info is doing kzallocs its
good to do -ENOMEM

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Devendra Naga 2012-07-10 11:19:15 +05:30 committed by Greg Kroah-Hartman
parent e6345c81b4
commit fd67859d38
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/sm7xxfb/sm7xxfb.c
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@ -808,8 +808,10 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
sfb = smtc_alloc_fb_info(pdev, name); sfb = smtc_alloc_fb_info(pdev, name);
if (!sfb) if (!sfb) {
err = -ENOMEM;
goto failed_free; goto failed_free;
}
sfb->chip_id = ent->device; sfb->chip_id = ent->device;
sprintf(name, "sm%Xfb", sfb->chip_id); sprintf(name, "sm%Xfb", sfb->chip_id);