This issue was detected by using the Coccinelle software.

Return the value from a call of the msi2500_ctrl_msg() function
without using an extra check for the variable "ret" at the end.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>