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Ye.Li committed 9345c99eb5e
MLK-11952 Video: IPU: Fix dereferencing NULL pointer problem By Coverity check, the clk_set_rate function dereferences the clk pointer without checking whether it is NULL. This may cause problem when clk is NULL. Fix the problem by adding NULL check. Signed-off-by: Ye.Li <B37916@freescale.com> (cherry picked from commit ded2f2958d568411274eeecd265fcc1181638335) (cherry picked from commit b58ac1502391d87470918ff8d172b2b8dc1e7a68)