From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/drivers/media/radio/wl128x/fmdrv_common.c | 45 ++++++++++++++++++++-------------------------
1 files changed, 20 insertions(+), 25 deletions(-)
diff --git a/kernel/drivers/media/radio/wl128x/fmdrv_common.c b/kernel/drivers/media/radio/wl128x/fmdrv_common.c
index cccf1a7..6142484 100644
--- a/kernel/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/kernel/drivers/media/radio/wl128x/fmdrv_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* FM Driver for Connectivity chip of Texas Instruments.
*
@@ -16,21 +17,13 @@
* Copyright (C) 2011 Texas Instruments
* Author: Raja Mani <raja_mani@ti.com>
* Author: Manjunatha Halli <manjunatha_halli@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
-#include <linux/module.h>
-#include <linux/firmware.h>
#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/nospec.h>
+
#include "fmdrv.h"
#include "fmdrv_v4l2.h"
#include "fmdrv_common.h"
@@ -253,7 +246,7 @@
* FM common sub-module will schedule this tasklet whenever it receives
* FM packet from ST driver.
*/
-static void recv_tasklet(unsigned long arg)
+static void recv_tasklet(struct tasklet_struct *t)
{
struct fmdev *fmdev;
struct fm_irq *irq_info;
@@ -262,7 +255,7 @@
u8 num_fm_hci_cmds;
unsigned long flags;
- fmdev = (struct fmdev *)arg;
+ fmdev = from_tasklet(fmdev, t, tx_task);
irq_info = &fmdev->irq_info;
/* Process all packets in the RX queue */
while ((skb = skb_dequeue(&fmdev->rx_q))) {
@@ -337,13 +330,13 @@
}
/* FM send tasklet: is scheduled when FM packet has to be sent to chip */
-static void send_tasklet(unsigned long arg)
+static void send_tasklet(struct tasklet_struct *t)
{
struct fmdev *fmdev;
struct sk_buff *skb;
int len;
- fmdev = (struct fmdev *)arg;
+ fmdev = from_tasklet(fmdev, t, tx_task);
if (!atomic_read(&fmdev->tx_cnt))
return;
@@ -709,7 +702,7 @@
struct fm_rds *rds = &fmdev->rx.rds;
unsigned long group_idx, flags;
u8 *rds_data, meta_data, tmpbuf[FM_RDS_BLK_SIZE];
- u8 type, blk_idx;
+ u8 type, blk_idx, idx;
u16 cur_picode;
u32 rds_len;
@@ -742,9 +735,11 @@
}
/* Skip checkword (control) byte and copy only data byte */
- memcpy(&rds_fmt.data.groupdatabuff.
- buff[blk_idx * (FM_RDS_BLK_SIZE - 1)],
- rds_data, (FM_RDS_BLK_SIZE - 1));
+ idx = array_index_nospec(blk_idx * (FM_RDS_BLK_SIZE - 1),
+ FM_RX_RDS_INFO_FIELD_MAX - (FM_RDS_BLK_SIZE - 1));
+
+ memcpy(&rds_fmt.data.groupdatabuff.buff[idx], rds_data,
+ FM_RDS_BLK_SIZE - 1);
rds->last_blk_idx = blk_idx;
@@ -911,7 +906,7 @@
u16 frq_index;
u16 payload;
- fmdbg("Swtich to %d KHz\n", fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx]);
+ fmdbg("Switch to %d KHz\n", fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx]);
frq_index = (fmdev->rx.stat_info.af_cache[fmdev->rx.afjump_idx] -
fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
@@ -1050,7 +1045,7 @@
clear_bit(FM_INTTASK_RUNNING, &fmdev->flag);
}
-/* Returns availability of RDS data in internel buffer */
+/* Returns availability of RDS data in internal buffer */
int fmc_is_rds_data_available(struct fmdev *fmdev, struct file *file,
struct poll_table_struct *pts)
{
@@ -1524,7 +1519,7 @@
}
ret = 0;
- } else if (ret == -1) {
+ } else if (ret < 0) {
fmerr("st_register failed %d\n", ret);
return -EAGAIN;
}
@@ -1544,11 +1539,11 @@
/* Initialize TX queue and TX tasklet */
skb_queue_head_init(&fmdev->tx_q);
- tasklet_init(&fmdev->tx_task, send_tasklet, (unsigned long)fmdev);
+ tasklet_setup(&fmdev->tx_task, send_tasklet);
/* Initialize RX Queue and RX tasklet */
skb_queue_head_init(&fmdev->rx_q);
- tasklet_init(&fmdev->rx_task, recv_tasklet, (unsigned long)fmdev);
+ tasklet_setup(&fmdev->rx_task, recv_tasklet);
fmdev->irq_info.stage = 0;
atomic_set(&fmdev->tx_cnt, 1);
--
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