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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-12-06 12:30:42 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-12-09 23:24:26 +0000 |
| commit | 9f28cde0bc643186d32744ce69d12222e8588fe7 (patch) | |
| tree | 708995a3df4183d75957b486c3994004e016459a /drivers/tty/tty_port.c | |
| parent | 11d4bb1bd067f9d01d18f620ccfad516dc579593 (diff) | |
| download | op-kernel-dev-9f28cde0bc643186d32744ce69d12222e8588fe7.zip op-kernel-dev-9f28cde0bc643186d32744ce69d12222e8588fe7.tar.gz | |
ARM: another fix for the DMA mapping checks
Peter reports that OMAP audio broke with the recent fix for these
checks, caused by OMAP audio using a 64-bit DMA mask. We should
allow 64-bit DMA masks even with 32-bit dma_addr_t if we can be sure
the amount of RAM we have won't allow the 32-bit dma_addr_t to
overflow. Unfortunately, the checks to detect overflow were not
correct.
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/tty/tty_port.c')
0 files changed, 0 insertions, 0 deletions
