diff options
Diffstat (limited to 'drivers/media/usb/cx231xx/cx231xx-core.c')
| -rw-r--r-- | drivers/media/usb/cx231xx/cx231xx-core.c | 51 |
1 files changed, 17 insertions, 34 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c index 493c2dca6244..d8312201694f 100644 --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* cx231xx-core.c - driver for Conexant Cx23100/101/102 USB video capture devices @@ -5,19 +6,6 @@ Copyright (C) 2008 <srinivasa.deevi at conexant dot com> Based on em28xx driver - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - 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. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "cx231xx.h" @@ -65,7 +53,7 @@ static DEFINE_MUTEX(cx231xx_devlist_mutex); /* * cx231xx_realease_resources() * unregisters the v4l2,i2c and usb devices - * called when the device gets disconected or at module unload + * called when the device gets disconnected or at module unload */ void cx231xx_remove_from_devlist(struct cx231xx *dev) { @@ -127,11 +115,9 @@ void cx231xx_init_extension(struct cx231xx *dev) struct cx231xx_ops *ops = NULL; mutex_lock(&cx231xx_devlist_mutex); - if (!list_empty(&cx231xx_extension_devlist)) { - list_for_each_entry(ops, &cx231xx_extension_devlist, next) { - if (ops->init) - ops->init(dev); - } + list_for_each_entry(ops, &cx231xx_extension_devlist, next) { + if (ops->init) + ops->init(dev); } mutex_unlock(&cx231xx_devlist_mutex); } @@ -141,11 +127,9 @@ void cx231xx_close_extension(struct cx231xx *dev) struct cx231xx_ops *ops = NULL; mutex_lock(&cx231xx_devlist_mutex); - if (!list_empty(&cx231xx_extension_devlist)) { - list_for_each_entry(ops, &cx231xx_extension_devlist, next) { - if (ops->fini) - ops->fini(dev); - } + list_for_each_entry(ops, &cx231xx_extension_devlist, next) { + if (ops->fini) + ops->fini(dev); } mutex_unlock(&cx231xx_devlist_mutex); } @@ -767,13 +751,12 @@ int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size) int ret = -ENOMEM; u32 *buffer; - buffer = kzalloc(4096, GFP_KERNEL); + buffer = kmemdup(firmware, EP5_BUF_SIZE, GFP_KERNEL); if (buffer == NULL) return -ENOMEM; - memcpy(&buffer[0], firmware, 4096); ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5), - buffer, 4096, &actlen, 2000); + buffer, EP5_BUF_SIZE, &actlen, EP5_TIMEOUT_MS); if (ret) dev_err(dev->dev, @@ -1010,7 +993,7 @@ int cx231xx_init_isoc(struct cx231xx *dev, int max_packets, /* De-allocates all pending stuff */ cx231xx_uninit_isoc(dev); - dma_q->p_left_data = kzalloc(4096, GFP_KERNEL); + dma_q->p_left_data = kzalloc(EP5_BUF_SIZE, GFP_KERNEL); if (dma_q->p_left_data == NULL) return -ENOMEM; @@ -1040,6 +1023,7 @@ int cx231xx_init_isoc(struct cx231xx *dev, int max_packets, if (!dev->video_mode.isoc_ctl.urb) { dev_err(dev->dev, "cannot alloc memory for usb buffers\n"); + kfree(dma_q->p_left_data); return -ENOMEM; } @@ -1049,6 +1033,7 @@ int cx231xx_init_isoc(struct cx231xx *dev, int max_packets, dev_err(dev->dev, "cannot allocate memory for usbtransfer\n"); kfree(dev->video_mode.isoc_ctl.urb); + kfree(dma_q->p_left_data); return -ENOMEM; } @@ -1077,9 +1062,8 @@ int cx231xx_init_isoc(struct cx231xx *dev, int max_packets, &urb->transfer_dma); if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) { dev_err(dev->dev, - "unable to allocate %i bytes for transfer buffer %i%s\n", - sb_size, i, - in_interrupt() ? " while in int" : ""); + "unable to allocate %i bytes for transfer buffer %i\n", + sb_size, i); cx231xx_uninit_isoc(dev); return -ENOMEM; } @@ -1213,9 +1197,8 @@ int cx231xx_init_bulk(struct cx231xx *dev, int max_packets, &urb->transfer_dma); if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) { dev_err(dev->dev, - "unable to allocate %i bytes for transfer buffer %i%s\n", - sb_size, i, - in_interrupt() ? " while in int" : ""); + "unable to allocate %i bytes for transfer buffer %i\n", + sb_size, i); cx231xx_uninit_bulk(dev); return -ENOMEM; } |