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/rk3399_rockchip-uboot/drivers/mmc/
H A Dmmc.ce85649c7e683faea1ccfddc9fa9abc62f38e4201 Sun Apr 05 08:00:53 UTC 2009 Rabin Vincent <rabin@rab.in> mmc: check find_mmc_device return value

find_mmc_device returns NULL if an invalid device number is specified.
Check for this to avoid dereferencing NULL pointers.

Signed-off-by: Rabin Vincent <rabin@rab.in>