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Commit e004c3e6 authored by Colin Ian King's avatar Colin Ian King Committed by Krzysztof Kozlowski
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memory: gpmc: fix out of bounds read and dereference on gpmc_cs[]



Currently the array gpmc_cs is indexed by cs before it cs is range checked
and the pointer read from this out-of-index read is dereferenced. Fix this
by performing the range check on cs before the read and the following
pointer dereference.

Addresses-Coverity: ("Negative array index read")
Fixes: 9ed7a776 ("ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select")
Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
Reviewed-by: default avatarTony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210223193821.17232-1-colin.king@canonical.com


Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
parent a38fd874
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