staging: comedi: dt2801: fix using uninitialized variable warnings
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Thu, 26 Sep 2013 17:29:20 +0000 (10:29 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 26 Sep 2013 23:36:19 +0000 (16:36 -0700)
commit3389c99eb80d3d265b60a6b9822792b15aa14758
treef3f89b88b9e0532f1488808b14d24e13c5683107
parent48c8cd291cf74a5673834790bedf135d97404f89
staging: comedi: dt2801: fix using uninitialized variable warnings

As pointed out by Fengguang Wu, the calls to dt2801_readdata() return the
data read thru a pointer (the address of a local variable) passed as a
parameter. If this local variable is not initialized it produces a warning
during the build of the form:

drivers/staging/comedi/drivers/dt2801.c: In function 'dt2801_ai_insn_read':
drivers/staging/comedi/drivers/dt2801.c:273:14: warning: 'hb' is used
      uninitialized in this function [-Wuninitialized]

Fix these warning by making sure the local variables are initialized.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/dt2801.c