[patch] staging: comedi: me4000: use bitwise AND instead of logical

[Dan Carpenter]

This was supposed to bitwise AND but there is a typo.

Fixes: 1a02387063fb ('staging: comedi: me4000: remove 'board' from 
me4000_ai_insn_read()')
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/staging/comedi/drivers/me4000.c 
b/drivers/staging/comedi/drivers/me4000.c
index 5aa1780..15a5320 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -480,7 +480,7 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 
        entry = chan | ME4000_AI_LIST_RANGE(range);
        if (aref == AREF_DIFF) {
-               if (!(s->subdev_flags && SDF_DIFF)) {
+               if (!(s->subdev_flags & SDF_DIFF)) {
                        dev_err(dev->class_dev,
                                "Differential inputs are not available\n");
                        return -EINVAL;
@@ -559,7 +559,7 @@ static int me4000_ai_check_chanlist(struct comedi_device 
*dev,
                }
 
                if (aref == AREF_DIFF) {
-                       if (!(s->subdev_flags && SDF_DIFF)) {
+                       if (!(s->subdev_flags & SDF_DIFF)) {
                                dev_err(dev->class_dev,
                                        "Differential inputs are not 
available\n");
                                return -EINVAL;
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