Kishon Vijay Abraham I 408806f740 mmc: omap_hsmmc: Fix DTO and DCRC handling ... DTO/DCRC errors were not being informed to the mmc core since commit ae4bf788ee ("mmc: omap_hsmmc: consolidate error report handling of HSMMC IRQ"). This commit made sure 'end_trans' is never set on DTO/DCRC errors. This is because after this commit 'host->data' is checked after it has been cleared to NULL by omap_hsmmc_dma_cleanup(). Because 'end_trans' is never set, omap_hsmmc_xfer_done() is never invoked making core layer not to be aware of DTO/DCRC errors. Because of this any command invoked after DTO/DCRC error leads to a hang. Fix this by checking for 'host->data' before it is actually cleared. Fixes: ae4bf788ee ("mmc: omap_hsmmc: consolidate error report handling of HSMMC IRQ") CC: stable@vger.kernel.org Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2015-07-24 10:18:13 +02:00
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mmc	mmc: omap_hsmmc: Fix DTO and DCRC handling	2015-07-24 10:18:13 +02:00
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