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fbdev: savage: Handle err return when savagefb_check_var failed
commit6ad959b670
upstream. The commit 04e5eac8f3ab("fbdev: savage: Error out if pixclock equals zero") checks the value of pixclock to avoid divide-by-zero error. However the function savagefb_probe doesn't handle the error return of savagefb_check_var. When pixclock is 0, it will cause divide-by-zero error. Fixes:04e5eac8f3
("fbdev: savage: Error out if pixclock equals zero") Signed-off-by: Cai Xinchen <caixinchen1@huawei.com> Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 4 additions and 1 deletions
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@ -2276,7 +2276,10 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
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if (info->var.xres_virtual > 0x1000)
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info->var.xres_virtual = 0x1000;
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#endif
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savagefb_check_var(&info->var, info);
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err = savagefb_check_var(&info->var, info);
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if (err)
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goto failed;
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savagefb_set_fix(info);
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/*
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