diff options
| author | Will Deacon <will@kernel.org> | 2021-08-16 14:26:17 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2021-08-23 06:32:04 -0400 |
| commit | f3cfd136aef0184919464b49d5b74d43605abcbc (patch) | |
| tree | ae36fc12ee82720324fd473c292aea4d5ddbce4a /kernel/dma | |
| parent | ce5cb67c664fbc93d1af20b3fbd7a07eda9f6ee6 (diff) | |
of: restricted dma: Don't fail device probe on rmem init failure
If CONFIG_DMA_RESTRICTED_POOL=n then probing a device with a reference
to a "restricted-dma-pool" will fail with a reasonably cryptic error:
| pci-host-generic: probe of 10000.pci failed with error -22
Rework of_dma_set_restricted_buffer() so that it does not cause probing
failure and instead either returns early if CONFIG_DMA_RESTRICTED_POOL=n
or emits a diagnostic if the reserved DMA pool fails to initialise.
Cc: Claire Chang <tientzu@chromium.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'kernel/dma')
0 files changed, 0 insertions, 0 deletions