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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2015-06-16 16:07:17 +0530 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-07-24 10:18:13 +0200 |
| commit | 408806f740497c5d71f9c305b3d6aad260ff186d (patch) | |
| tree | c63094c90505852a612dd481161240c71f49fe25 /firmware | |
| parent | 52721d9d3334c1cb1f76219a161084094ec634dc (diff) | |
| download | linux-408806f740497c5d71f9c305b3d6aad260ff186d.tar.bz2 | |
mmc: omap_hsmmc: Fix DTO and DCRC handling
DTO/DCRC errors were not being informed to the mmc core since
commit ae4bf788ee9b ("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: ae4bf788ee9b ("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>
Diffstat (limited to 'firmware')
0 files changed, 0 insertions, 0 deletions