tree 899819f6c2b1a65c8881a6c83f5f1023a793a9d3
parent a0747eb81c1d106b1408d60452af75cd17a67621
author Brent Taylor <motobud@gmail.com> 1457850331 -0600
committer Ulf Hansson <ulf.hansson@linaro.org> 1458222881 +0100

mmc: atmel-mci: Check pdata for NULL before dereferencing it at DMA config

Using an at91sam9g20ek development board with DTS configuration may trigger
a kernel panic because of a NULL pointer dereference exception, while
configuring DMA. Let's fix this by adding a check for pdata before
dereferencing it.

Signed-off-by: Brent Taylor <motobud@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>