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mmc: omap_hsmmc: don't print uninitialized variables 

When DT based probing is used but the DMA request fails, the
driver will print uninitialized stack data from the rx_req
and tx_req variables, as indicated by this warning:

drivers/mmc/host/omap_hsmmc.c: In function 'omap_hsmmc_probe':
drivers/mmc/host/omap_hsmmc.c:2162:3: warning: 'rx_req' may be used uninitialized in this function [-Wmaybe-uninitialized]
   dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel %u\n", rx_req);

This removes the DMA request line number from the warning, which
is the easiest solution and won't hurt us any more as we are
planning to remove the legacy code path anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Arnd Bergmann 2016-01-26 16:26:31 +01:00 committed by Ulf Hansson
parent 4e6a2ef941
commit 358399f8ca
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/host/omap_hsmmc.c
View File

@ -2162,7 +2162,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
&rx_req, &pdev->dev, "rx");
if (!host->rx_chan) {
dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel %u\n", rx_req);
dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel\n");
ret = -ENXIO;
goto err_irq;
}
@ -2172,7 +2172,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
&tx_req, &pdev->dev, "tx");
if (!host->tx_chan) {
dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel %u\n", tx_req);
dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel\n");
ret = -ENXIO;
goto err_irq;
}