disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/isdn/hardware/mISDN/mISDNipac.c
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@@ -1,23 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * isac.c   ISAC specific routines
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  *
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  * Author       Karsten Keil <keil@isdn4linux.de>
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  *
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  * Copyright 2009  by Karsten Keil <keil@isdn4linux.de>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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- *
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  */
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 #include <linux/irqreturn.h>
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@@ -203,8 +190,7 @@
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 #endif
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 		}
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 		WriteISAC(isac, ISAC_CMDR, 0x80);
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-		if (isac->dch.rx_skb)
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-			dev_kfree_skb(isac->dch.rx_skb);
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+		dev_kfree_skb(isac->dch.rx_skb);
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 		isac->dch.rx_skb = NULL;
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 	} else {
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 		count = ReadISAC(isac, ISAC_RBCL) & 0x1f;
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@@ -223,8 +209,7 @@
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 	if (isac->dch.tx_skb && isac->dch.tx_idx < isac->dch.tx_skb->len) {
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 		isac_fill_fifo(isac);
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 	} else {
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-		if (isac->dch.tx_skb)
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-			dev_kfree_skb(isac->dch.tx_skb);
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+		dev_kfree_skb(isac->dch.tx_skb);
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 		if (get_next_dframe(&isac->dch))
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 			isac_fill_fifo(isac);
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 	}
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@@ -477,8 +462,7 @@
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 			isac->dch.err_crc++;
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 #endif
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 		WriteISAC(isac, ISACX_CMDRD, ISACX_CMDRD_RMC);
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-		if (isac->dch.rx_skb)
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-			dev_kfree_skb(isac->dch.rx_skb);
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+		dev_kfree_skb(isac->dch.rx_skb);
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 		isac->dch.rx_skb = NULL;
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 	} else {
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 		count = ReadISAC(isac, ISACX_RBCLD) & 0x1f;
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@@ -952,8 +936,8 @@
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 		hscx_cmdr(hscx, 0x80); /* RMC */
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 		if (hscx->bch.rx_skb)
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 			skb_trim(hscx->bch.rx_skb, 0);
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-		pr_warning("%s.B%d: No bufferspace for %d bytes\n",
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-			   hscx->ip->name, hscx->bch.nr, count);
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+		pr_warn("%s.B%d: No bufferspace for %d bytes\n",
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+			hscx->ip->name, hscx->bch.nr, count);
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 		return;
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 	}
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 	p = skb_put(hscx->bch.rx_skb, count);
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@@ -1025,8 +1009,7 @@
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 	if (hx->bch.tx_skb && hx->bch.tx_idx < hx->bch.tx_skb->len) {
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 		hscx_fill_fifo(hx);
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 	} else {
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-		if (hx->bch.tx_skb)
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-			dev_kfree_skb(hx->bch.tx_skb);
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+		dev_kfree_skb(hx->bch.tx_skb);
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 		if (get_next_bframe(&hx->bch)) {
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 			hscx_fill_fifo(hx);
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 			test_and_clear_bit(FLG_TX_EMPTY, &hx->bch.Flags);