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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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1 | 2 | /* |
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2 | 3 | * pps_parport.c -- kernel parallel port PPS client |
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3 | 4 | * |
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4 | | - * |
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5 | 5 | * Copyright (C) 2009 Alexander Gordeev <lasaine@lvk.cs.msu.su> |
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6 | | - * |
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7 | | - * This program is free software; you can redistribute it and/or modify |
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8 | | - * it under the terms of the GNU General Public License as published by |
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9 | | - * the Free Software Foundation; either version 2 of the License, or |
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10 | | - * (at your option) any later version. |
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11 | | - * |
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12 | | - * This program is distributed in the hope that it will be useful, |
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13 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | | - * GNU General Public License for more details. |
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16 | | - * |
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17 | | - * You should have received a copy of the GNU General Public License |
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18 | | - * along with this program; if not, write to the Free Software |
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19 | | - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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20 | 6 | */ |
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21 | 7 | |
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22 | 8 | |
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.. | .. |
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179 | 165 | |
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180 | 166 | device->pps = pps_register_source(&info, |
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181 | 167 | PPS_CAPTUREBOTH | PPS_OFFSETASSERT | PPS_OFFSETCLEAR); |
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182 | | - if (device->pps == NULL) { |
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| 168 | + if (IS_ERR(device->pps)) { |
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183 | 169 | pr_err("couldn't register PPS source\n"); |
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184 | 170 | goto err_release_dev; |
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185 | 171 | } |
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