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Date: Sat, 01 Nov 2008 21:00:05 +0100 From: Németh Márton <nm127@...email.hu> To: Hans Verkuil <hverkuil@...all.nl> CC: Robert William Fuller <hydrologiccycle@...il.com>, video4linux-list@...hat.com, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 2/2] video: simplify cx18_get_input() and ivtv_get_input() From: Márton Németh <nm127@...email.hu> The cx18_get_input() and ivtv_get_input() are called once from the VIDIOC_ENUMINPUT ioctl() (see drivers/media/video/v4l2-ioctl.c:1165) and once from the *_log_status() functions. In the first case the struct v4l2_input is already filled with zeros, so doing this again is unnecessary. The second case is only used for debugging purposes from the VIDIOC_LOG_STATUS ioctl(). Currently only the "name" field is used in the *_log_status() functions. Signed-off-by: Márton Németh <nm127@...email.hu> --- diff -upr linux-2.6.28-rc1.orig/drivers/media/video/cx18/cx18-cards.c linux-2.6.28-rc1/drivers/media/video/cx18/cx18-cards.c --- linux-2.6.28-rc1.orig/drivers/media/video/cx18/cx18-cards.c 2008-11-01 20:27:58.000000000 +0100 +++ linux-2.6.28-rc1/drivers/media/video/cx18/cx18-cards.c 2008-11-01 20:36:39.000000000 +0100 @@ -419,10 +419,8 @@ int cx18_get_input(struct cx18 *cx, u16 "Composite 3" }; - memset(input, 0, sizeof(*input)); if (index >= cx->nof_inputs) return -EINVAL; - input->index = index; strlcpy(input->name, input_strs[card_input->video_type - 1], sizeof(input->name)); input->type = (card_input->video_type == CX18_CARD_INPUT_VID_TUNER ? diff -upr linux-2.6.28-rc1.orig/drivers/media/video/ivtv/ivtv-cards.c linux-2.6.28-rc1/drivers/media/video/ivtv/ivtv-cards.c --- linux-2.6.28-rc1.orig/drivers/media/video/ivtv/ivtv-cards.c 2008-10-10 00:13:53.000000000 +0200 +++ linux-2.6.28-rc1/drivers/media/video/ivtv/ivtv-cards.c 2008-11-01 20:37:27.000000000 +0100 @@ -1199,10 +1199,8 @@ int ivtv_get_input(struct ivtv *itv, u16 "Composite 3" }; - memset(input, 0, sizeof(*input)); if (index >= itv->nof_inputs) return -EINVAL; - input->index = index; strlcpy(input->name, input_strs[card_input->video_type - 1], sizeof(input->name)); input->type = (card_input->video_type == IVTV_CARD_INPUT_VID_TUNER ? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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