[media] V4L: Use NULL pointer instead of plain integer in v4l2-ctrls.c file
Fixes the following sparse warning: drivers/media/video/v4l2-ctrls.c:2123:43: warning: Using plain integer as NULL pointer Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -2121,7 +2121,7 @@ static int prepare_ext_ctrls(struct v4l2_ctrl_handler *hdl,
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/* First zero the helper field in the master control references */
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for (i = 0; i < cs->count; i++)
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helpers[i].mref->helper = 0;
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helpers[i].mref->helper = NULL;
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for (i = 0, h = helpers; i < cs->count; i++, h++) {
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struct v4l2_ctrl_ref *mref = h->mref;
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