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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-22 12:08:05 +0200 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2025-05-22 20:29:45 +0200 |
| commit | 62f134ab190c5fd5c9f68fe638ad8e13bb8a4cb4 (patch) | |
| tree | 973a0ec0435f13127b7b166840a1502dedd8e2dd /sound | |
| parent | Merge tag 'asoc-fix-v6.15-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus (diff) | |
| download | linux-rng-62f134ab190c5fd5c9f68fe638ad8e13bb8a4cb4.tar.xz linux-rng-62f134ab190c5fd5c9f68fe638ad8e13bb8a4cb4.zip | |
ALSA: core: fix up bus match const issues.
In commit d69d80484598 ("driver core: have match() callback in struct
bus_type take a const *"), the match bus callback was changed to have
the driver be a const pointer. Unfortunately that const attribute was
thrown away when container_of() is called, which is not correct and was
not caught by the compiler due to how container_of() is implemented.
Fix this up by correctly preserving the const attribute of the driver
passed to the bus match function which requires the hdac_driver match
function to also take a const pointer for the driver structure.
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Fixes: d69d80484598 ("driver core: have match() callback in struct bus_type take a const *")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/2025052204-hyphen-thermal-3e72@gregkh
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/seq_device.c | 2 | ||||
| -rw-r--r-- | sound/hda/hda_bus_type.c | 6 | ||||
| -rw-r--r-- | sound/pci/hda/hda_bind.c | 4 |
3 files changed, 6 insertions, 6 deletions
diff --git a/sound/core/seq_device.c b/sound/core/seq_device.c index 4492be5d2317..bac9f8603734 100644 --- a/sound/core/seq_device.c +++ b/sound/core/seq_device.c @@ -43,7 +43,7 @@ MODULE_LICENSE("GPL"); static int snd_seq_bus_match(struct device *dev, const struct device_driver *drv) { struct snd_seq_device *sdev = to_seq_dev(dev); - struct snd_seq_driver *sdrv = to_seq_drv(drv); + const struct snd_seq_driver *sdrv = to_seq_drv(drv); return strcmp(sdrv->id, sdev->id) == 0 && sdrv->argsize == sdev->argsize; diff --git a/sound/hda/hda_bus_type.c b/sound/hda/hda_bus_type.c index 7545ace7b0ee..eb72a7af2e56 100644 --- a/sound/hda/hda_bus_type.c +++ b/sound/hda/hda_bus_type.c @@ -21,7 +21,7 @@ MODULE_LICENSE("GPL"); * driver id_table and returns the matching device id entry. */ const struct hda_device_id * -hdac_get_device_id(struct hdac_device *hdev, struct hdac_driver *drv) +hdac_get_device_id(struct hdac_device *hdev, const struct hdac_driver *drv) { if (drv->id_table) { const struct hda_device_id *id = drv->id_table; @@ -38,7 +38,7 @@ hdac_get_device_id(struct hdac_device *hdev, struct hdac_driver *drv) } EXPORT_SYMBOL_GPL(hdac_get_device_id); -static int hdac_codec_match(struct hdac_device *dev, struct hdac_driver *drv) +static int hdac_codec_match(struct hdac_device *dev, const struct hdac_driver *drv) { if (hdac_get_device_id(dev, drv)) return 1; @@ -49,7 +49,7 @@ static int hdac_codec_match(struct hdac_device *dev, struct hdac_driver *drv) static int hda_bus_match(struct device *dev, const struct device_driver *drv) { struct hdac_device *hdev = dev_to_hdac_dev(dev); - struct hdac_driver *hdrv = drv_to_hdac_driver(drv); + const struct hdac_driver *hdrv = drv_to_hdac_driver(drv); if (hdev->type != hdrv->type) return 0; diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c index 9521e5e0e6e6..1fef350d821e 100644 --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -18,10 +18,10 @@ /* * find a matching codec id */ -static int hda_codec_match(struct hdac_device *dev, struct hdac_driver *drv) +static int hda_codec_match(struct hdac_device *dev, const struct hdac_driver *drv) { struct hda_codec *codec = container_of(dev, struct hda_codec, core); - struct hda_codec_driver *driver = + const struct hda_codec_driver *driver = container_of(drv, struct hda_codec_driver, core); const struct hda_device_id *list; /* check probe_id instead of vendor_id if set */ |