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mmc: atmel-mci: Check pdata for NULL before dereferencing it at DMA config
authorBrent Taylor <motobud@gmail.com>
Sun, 13 Mar 2016 06:25:31 +0000 (00:25 -0600)
committerUlf Hansson <ulf.hansson@linaro.org>
Thu, 17 Mar 2016 13:54:41 +0000 (14:54 +0100)
commit93c77d2999b09f2084b033ea6489915e0104ad9c
tree899819f6c2b1a65c8881a6c83f5f1023a793a9d3tree | snapshot
parenta0747eb81c1d106b1408d60452af75cd17a67621commit | diff
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>
drivers/mmc/host/atmel-mci.c diff | blob | history
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