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由 Andy Shevchenko 提交于
When user interrupts ongoing transfers the dmatest may end up with console lockup, oops, or data mismatch. This patch prevents user to abort any ongoing test. Documentation is updated accordingly. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Reported-by: NWill Deacon <will.deacon@arm.com> Tested-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NVinod Koul <vinod.koul@intel.com>
bcc567e3