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[media] v4l2-ioctl.c: fix enum_freq_bands handling
If the driver supports enum_freq_bands, but only for certain device nodes, then it may return -ENOTTY. But in that case the code should fall into the fall-back case where the current tuner/modulator range is returned. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -2042,8 +2042,11 @@ static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
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if (type != p->type)
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return -EINVAL;
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}
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if (ops->vidioc_enum_freq_bands)
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return ops->vidioc_enum_freq_bands(file, fh, p);
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if (ops->vidioc_enum_freq_bands) {
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err = ops->vidioc_enum_freq_bands(file, fh, p);
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if (err != -ENOTTY)
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return err;
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}
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if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
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struct v4l2_tuner t = {
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.index = p->tuner,
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