/* * For multichannel support */ #ifndef __SOUND_HDA_CHMAP_H #define __SOUND_HDA_CHMAP_H #include #include #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80 struct hdac_cea_channel_speaker_allocation { int ca_index; int speakers[8]; /* derived values, just for convenience */ int channels; int spk_mask; }; struct hdac_chmap; struct hdac_chmap_ops { /* * Helpers for producing the channel map TLVs. These can be overridden * for devices that have non-standard mapping requirements. */ int (*chmap_cea_alloc_validate_get_type)(struct hdac_chmap *chmap, struct hdac_cea_channel_speaker_allocation *cap, int channels); void (*cea_alloc_to_tlv_chmap)(struct hdac_chmap *hchmap, struct hdac_cea_channel_speaker_allocation *cap, unsigned int *chmap, int channels); /* check that the user-given chmap is supported */ int (*chmap_validate)(struct hdac_chmap *hchmap, int ca, int channels, unsigned char *chmap); int (*get_spk_alloc)(struct hdac_device *hdac, int pcm_idx); void (*get_chmap)(struct hdac_device *hdac, int pcm_idx, unsigned char *chmap); void (*set_chmap)(struct hdac_device *hdac, int pcm_idx, unsigned char *chmap, int prepared); bool (*is_pcm_attached)(struct hdac_device *hdac, int pcm_idx); /* get and set channel assigned to each HDMI ASP (audio sample packet) slot */ int (*pin_get_slot_channel)(struct hdac_device *codec, hda_nid_t pin_nid, int asp_slot); int (*pin_set_slot_channel)(struct hdac_device *codec, hda_nid_t pin_nid, int asp_slot, int channel); void (*set_channel_count)(struct hdac_device *codec, hda_nid_t cvt_nid, int chs); }; struct hdac_chmap { unsigned int channels_max; /* max over all cvts */ struct hdac_chmap_ops ops; struct hdac_device *hdac; }; void snd_hdac_register_chmap_ops(struct hdac_device *hdac, struct hdac_chmap *chmap); int snd_hdac_channel_allocation(struct hdac_device *hdac, int spk_alloc, int channels, bool chmap_set, bool non_pcm, unsigned char *map); int snd_hdac_get_active_channels(int ca); void snd_hdac_setup_channel_mapping(struct hdac_chmap *chmap, hda_nid_t pin_nid, bool non_pcm, int ca, int channels, unsigned char *map, bool chmap_set); void snd_hdac_print_channel_allocation(int spk_alloc, char *buf, int buflen); struct hdac_cea_channel_speaker_allocation *snd_hdac_get_ch_alloc_from_ca(int ca); int snd_hdac_chmap_to_spk_mask(unsigned char c); int snd_hdac_spk_to_chmap(int spk); int snd_hdac_add_chmap_ctls(struct snd_pcm *pcm, int pcm_idx, struct hdac_chmap *chmap); #endif /* __SOUND_HDA_CHMAP_H */ e='10' name='q' value=''/>
path: root/drivers/usb/usbip/vudc_dev.c
diff options
context:
space:
mode:
authorJisheng Zhang <jszhang@marvell.com>2016-11-10 17:21:29 +0800
committerMark Brown <broonie@kernel.org>2016-11-11 15:38:08 +0000
commit09f2ba0b0b7c44ecea49cf69a708203b76ba5535 (patch)
tree042df33ac99f77d8b86ac427431e267c33561c35 /drivers/usb/usbip/vudc_dev.c
parent1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: gpio: properly check return value of of_get_named_gpio
The function of_get_named_gpio() could return -ENOENT, -EPROBE_DEFER -EINVAL and so on. Currently, for the optional property "enable-gpio", we only check -EPROBE_DEFER, this is not enough since there may be misconfigured "enable-gpio" in the DTB, of_get_named_gpio() will return -EINVAL in this case, we should return immediately here. And for the optional property "gpios", we didn't check the return value, the driver will continue to the point where gpio_request_array() is called, it doesn't make sense to continue if we got -EPROBE_DEFER or -EINVAL here. This patch tries to address these two issues by properly checking the return value of of_get_named_gpio. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/usb/usbip/vudc_dev.c')