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hvc_dcc: don't ignore errors during initialization
hvc_instantiate() and hvc_alloc() return errors if they fail, so don't ignore them. Signed-off-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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9af92fbff3
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3d27070108
1 changed files with 11 additions and 4 deletions
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@ -70,20 +70,27 @@ static const struct hv_ops hvc_dcc_get_put_ops = {
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static int __init hvc_dcc_console_init(void)
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{
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int ret;
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if (!hvc_dcc_check())
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return -ENODEV;
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hvc_instantiate(0, 0, &hvc_dcc_get_put_ops);
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return 0;
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/* Returns -1 if error */
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ret = hvc_instantiate(0, 0, &hvc_dcc_get_put_ops);
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return ret < 0 ? -ENODEV : 0;
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}
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console_initcall(hvc_dcc_console_init);
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static int __init hvc_dcc_init(void)
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{
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struct hvc_struct *p;
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if (!hvc_dcc_check())
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return -ENODEV;
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hvc_alloc(0, 0, &hvc_dcc_get_put_ops, 128);
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return 0;
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p = hvc_alloc(0, 0, &hvc_dcc_get_put_ops, 128);
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return PTR_ERR_OR_ZERO(p);
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}
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device_initcall(hvc_dcc_init);
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