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authorTudor Ambarus <tudor.ambarus@microchip.com>2020-01-23 14:03:06 +0000
committerVinod Koul <vkoul@kernel.org>2020-02-25 11:27:27 +0530
commitad16bc232dd72f85984c790e07c69009b7c850c8 (patch)
tree5bbe4d155f66038df71ac4f10309e776816cafbe /tools/perf/scripts/python/export-to-postgresql.py
parentbbc58394d81110f76586d3053fd5a3a3ad616050 (diff)
dmaengine: at_hdmac: Return err in case the chan is not free at alloc res time
Having a list of descriptors allocated for the channel at device_alloc_chan_resources() time is a sign for bad free usage. Return err and add a debug message in case the channel is not free from a previous use. atchan->descs_allocated becomes useless, get rid of it. More, drop the error message in atc_desc_get() because now it would introduce an extra if statement. The callers of atc_desc_get() already print error messages in case the callee fails, no one is hurt. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Link: https://lore.kernel.org/r/20200123140237.125799-3-tudor.ambarus@microchip.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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