Revision 1401cf600d548c72f51e20b5841c330d5c11c9e2 authored by Wei Yongjun on 20 May 2020, 03:41:16 UTC, committed by David S. Miller on 22 May 2020, 00:14:18 UTC
Convert to using IS_ERR() instead of NULL test for cpsw_ale_create() error handling. Also fix to return negative error code from this error handling case instead of 0 in. Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 3469660
iso-resources.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
#define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
#include <linux/mutex.h>
#include <linux/types.h>
struct fw_unit;
/**
* struct fw_iso_resources - manages channel/bandwidth allocation
* @channels_mask: if the device does not support all channel numbers, set this
* bit mask to something else than the default (all ones)
*
* This structure manages (de)allocation of isochronous resources (channel and
* bandwidth) for one isochronous stream.
*/
struct fw_iso_resources {
u64 channels_mask;
/* private: */
struct fw_unit *unit;
struct mutex mutex;
unsigned int channel;
unsigned int bandwidth; /* in bandwidth units, without overhead */
unsigned int bandwidth_overhead;
int generation; /* in which allocation is valid */
bool allocated;
};
int fw_iso_resources_init(struct fw_iso_resources *r,
struct fw_unit *unit);
void fw_iso_resources_destroy(struct fw_iso_resources *r);
int fw_iso_resources_allocate(struct fw_iso_resources *r,
unsigned int max_payload_bytes, int speed);
int fw_iso_resources_update(struct fw_iso_resources *r);
void fw_iso_resources_free(struct fw_iso_resources *r);
#endif
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