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| author | Takashi Iwai <tiwai@suse.de> | 2024-03-11 16:18:47 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-03-11 16:18:47 +0100 |
| commit | f5d9ddf1214bf878ca69c905c2f410c5b51de99c (patch) | |
| tree | 3ea7bf6f519a490f72cf5f9023b5c0a6dff0fea0 /drivers/media/rc/lirc_dev.c | |
| parent | 6719cd5e45111449f4021e08f2e488f17a9b292b (diff) | |
| parent | 6c023ad32b192dea51a4f842cc6ecf89bb6238c9 (diff) | |
Merge tag 'asoc-v6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.9
This has been quite a small release, there's a lot of driver specific
cleanups and minor enhancements but hardly anything on the core and only
one new driver. Highlights include:
- SoundWire support for AMD ACP 6.3 systems.
- Support for reporting version information for AVS firmware.
- Support DSPless mode for Intel Soundwire systems.
- Support for configuring CS35L56 amplifiers using EFI calibration
data.
- Log which component is being operated on as part of power management
trace events.
- Support for Microchip SAM9x7, NXP i.MX95 and Qualcomm WCD939x
Diffstat (limited to 'drivers/media/rc/lirc_dev.c')
| -rw-r--r-- | drivers/media/rc/lirc_dev.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index a537734832c5..caad59f76793 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -814,7 +814,7 @@ void __exit lirc_dev_exit(void) unregister_chrdev_region(lirc_base_dev, RC_DEV_MAX); } -struct rc_dev *rc_dev_get_from_fd(int fd) +struct rc_dev *rc_dev_get_from_fd(int fd, bool write) { struct fd f = fdget(fd); struct lirc_fh *fh; @@ -828,6 +828,9 @@ struct rc_dev *rc_dev_get_from_fd(int fd) return ERR_PTR(-EINVAL); } + if (write && !(f.file->f_mode & FMODE_WRITE)) + return ERR_PTR(-EPERM); + fh = f.file->private_data; dev = fh->rc; |