From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 16 Dec 2013 14:02:10 +0000 (+0300)
Subject: spi: tegra: checking for ERR_PTR instead of NULL
X-Git-Tag: cleanup-for-linus~6^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a0a1af30cbf56b41220a02e34835022c4d72f41;p=pandora-kernel.git

spi: tegra: checking for ERR_PTR instead of NULL

dma_request_slave_channel() returns NULL on error and not ERR_PTRs.
I've fixed this by using dma_request_slave_channel_reason() which does
return ERR_PTRs.

Fixes: a915d150f68d ('spi: tegra: convert to standard DMA DT bindings')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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