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| author | Takashi Iwai <tiwai@suse.de> | 2020-10-12 16:08:57 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-10-12 16:08:57 +0200 |
| commit | f401b2c9931a70317b6ac0d3e6020adc3a404cc0 (patch) | |
| tree | b73efe177884c84bd86f647e2081583d719dde93 /drivers/dax/super.c | |
| parent | a6e7d0a4bdb02a7a3ffe0b44aaa8842b7efdd056 (diff) | |
| parent | c890e30b069a2792a5a34e8510a7a437dd6f5b3d (diff) | |
Merge tag 'asoc-v5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.10
Not a huge amount going on in the core for ASoC this time but quite a
lot of driver activity, especially for the Intel platforms:
- Replacement of the DSP driver for some older x86 systems with a new
one which was written with closer reference to the DSP firmware so
should hopefully be more robust and maintainable.
- A big batch of static checker and other fixes for the rest of the x86
DSP drivers.
- Cleanup of the error unwinding code from Morimoto-san, hopefully
making it more robust.
- Helpers for parsing auxiluary devices from the device tree from
Stephan Gerhold.
- New support for AllWinner A64, Cirrus Logic CS4234, Mediatek MT6359
Microchip S/PDIF TX and RX controllers, Realtek RT1015P, and Texas
Instruments J721E, TAS2110, TAS2564 and TAS2764
Diffstat (limited to 'drivers/dax/super.c')
| -rw-r--r-- | drivers/dax/super.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index c82cbcb64202..e84070b55463 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -85,6 +85,12 @@ bool __generic_fsdax_supported(struct dax_device *dax_dev, return false; } + if (!dax_dev) { + pr_debug("%s: error: dax unsupported by block device\n", + bdevname(bdev, buf)); + return false; + } + err = bdev_dax_pgoff(bdev, start, PAGE_SIZE, &pgoff); if (err) { pr_info("%s: error: unaligned partition for dax\n", @@ -319,11 +325,15 @@ EXPORT_SYMBOL_GPL(dax_direct_access); bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev, int blocksize, sector_t start, sector_t len) { + if (!dax_dev) + return false; + if (!dax_alive(dax_dev)) return false; return dax_dev->ops->dax_supported(dax_dev, bdev, blocksize, start, len); } +EXPORT_SYMBOL_GPL(dax_supported); size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i) |