diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2016-09-14 13:21:54 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-09-14 13:59:33 +0200 |
| commit | df804d5e27490151da1ce9f216031a31352203e6 (patch) | |
| tree | 74a535ef8717272bb413119061ef54e0c80e53a1 /drivers/mmc/host/omap.c | |
| parent | mmc: omap_hsmmc: Initialize dma_slave_config to avoid random data (diff) | |
| download | linux-df804d5e27490151da1ce9f216031a31352203e6.tar.xz linux-df804d5e27490151da1ce9f216031a31352203e6.zip | |
mmc: omap: Initialize dma_slave_config to avoid random data in it's fields
It is wrong to use uninitialized dma_slave_config and configure only
certain fields as the DMAengine driver might look at non initialized
(random data) fields and tries to interpret it.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/omap.c')
| -rw-r--r-- | drivers/mmc/host/omap.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index f23d65eb070d..be3c49fa7382 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -1016,14 +1016,16 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req) /* Only reconfigure if we have a different burst size */ if (*bp != burst) { - struct dma_slave_config cfg; - - cfg.src_addr = host->phys_base + OMAP_MMC_REG(host, DATA); - cfg.dst_addr = host->phys_base + OMAP_MMC_REG(host, DATA); - cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; - cfg.src_maxburst = burst; - cfg.dst_maxburst = burst; + struct dma_slave_config cfg = { + .src_addr = host->phys_base + + OMAP_MMC_REG(host, DATA), + .dst_addr = host->phys_base + + OMAP_MMC_REG(host, DATA), + .src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, + .dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, + .src_maxburst = burst, + .dst_maxburst = burst, + }; if (dmaengine_slave_config(c, &cfg)) goto use_pio; |