diff options
| author |   Mark Farrugia <mark.farrugia@fiberdyne.com.au> | 2018-09-20 17:23:42 +1000 |
|---|---|---|
| committer | Mark Farrugia <mark.farrugia@fiberdyne.com.au> | 2018-10-26 17:27:34 +1100 |
| commit | c032639678c494710f685612acffeae9b0f603f3 (patch) | |
| tree | db5336923253e43bf717caead3a42ab21295b975 /utils.h | |
| parent | 3786b607d4dd5e738cbe491dbfb03c2283e74358 (diff) | |
Create avirt_stream structure in place of old config structures
Remove unnecessary extra memory allocation with the old config structures. We can store the snd_pcm pointer, which contains lots of info already.
Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
Diffstat (limited to 'utils.h')
| -rw-r--r-- | utils.h | 49 |
1 files changed, 49 insertions, 0 deletions
@@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ALSA Virtual Soundcard + * + * utils.h - Some useful utilities for AVIRT + * + * Copyright (C) 2010-2018 Fiberdyne Systems Pty Ltd + */ + +#ifndef __AVIRT_UTILS_H__ +#define __AVIRT_UTILS_H__ + +#include <linux/slab.h> + +#define PRINT_ERR(errno, errmsg) \ + pr_err("[%s]:[ERRNO:%d]: %s ", __func__, errno, (errmsg)); + +#define CHK_ERR(errno) \ + do { \ + if ((errno) < 0) \ + return (errno); \ + } while (0) + +#define CHK_ERR_V(errno, errmsg, ...) \ + do { \ + if ((errno) < 0) { \ + PRINT_ERR((errno), (errmsg), ##__VA_ARGS__) \ + return (errno); \ + } \ + } while (0) + +#define CHK_NULL(x) \ + do { \ + if (!(x)) \ + return -EFAULT; \ + } while (0) + +#define CHK_NULL_V(x, errmsg, ...) \ + do { \ + if (!(x)) { \ + char *errmsg_done = \ + kasprintf(GFP_KERNEL, errmsg, ##__VA_ARGS__); \ + PRINT_ERR(EFAULT, errmsg_done); \ + kfree(errmsg_done); \ + return -EFAULT; \ + } \ + } while (0) + +#endif |