diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-07-14 18:39:10 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-07-21 10:35:07 -0400 |
| commit | 162f43e31c5a376ec16336e5d0ac973373d54c89 (patch) | |
| tree | 366ce758f78683291ca7db913276611ffaca00fb /drivers/mmc/host/tmio_mmc_pio.c | |
| parent | 332bdb506f800d177f6657247347a253dd5b5be8 (diff) | |
| download | blackbird-obmc-linux-162f43e31c5a376ec16336e5d0ac973373d54c89.tar.gz blackbird-obmc-linux-162f43e31c5a376ec16336e5d0ac973373d54c89.zip | |
mmc: tmio: fix a deadlock
Currently the tmio-mmc driver contains a recursive runtime PM method
invocation, which leads to a deadlock on a mutex. Avoid it by taking
care not to request DMA too early.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc_pio.c')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_pio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 221ffb71c7a3..1f16357e7301 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -984,7 +984,7 @@ int tmio_mmc_host_resume(struct device *dev) if (host->pm_global) { /* Runtime PM resume callback didn't run */ tmio_mmc_reset(host); - tmio_mmc_request_dma(host, host->pdata); + tmio_mmc_enable_dma(host, true); host->pm_global = false; } @@ -1007,7 +1007,7 @@ int tmio_mmc_host_runtime_resume(struct device *dev) struct tmio_mmc_data *pdata = host->pdata; tmio_mmc_reset(host); - tmio_mmc_request_dma(host, host->pdata); + tmio_mmc_enable_dma(host, true); if (pdata->power) { /* Only entered after a card-insert interrupt */ |
