tree eac96cac9cd154b1dc2e284c445ebe3d2cd94c75
parent f858bb2e6c191da3981838937950cb3c98e488fe
author Heinrich Schuchardt <xypron.glpk@gmx.de> 1629177118 +0200
committer Stefan Roese <sr@denx.de> 1630476564 +0200

kwbimage: check return value of image_get_csk_index

image_get_csk_index() may return -1 in case of an error. Don't use this
value as index.

This resolves Coverity CID 338488
Memory - illegal accesses  (NEGATIVE_RETURNS)

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Pali Rohár <pali@kernel.org>