From 4df16f702c38221f611006bda45377278b2ec325 Mon Sep 17 00:00:00 2001 From: Peter Senna Tschudin Date: Sat, 31 May 2014 13:30:52 -0300 Subject: [PATCH] [media] drivers/media: Remove useless return variables This patch remove variables that are initialized with a constant, are never updated, and are only used as parameter of return. Return the constant instead of using a variable. Verified by compilation only. The coccinelle script that find and fixes this issue is: // @@ type T; constant C; identifier ret; @@ - T ret = C; ... when != ret when strict return - ret + C ; // Signed-off-by: Peter Senna Tschudin Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/ngene/ngene-core.c | 7 ++----- drivers/media/usb/cx231xx/cx231xx-video.c | 11 +++++------ 2 files changed, 7 insertions(+), 11 deletions(-) diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c index 970e8330852..826228c3800 100644 --- a/drivers/media/pci/ngene/ngene-core.c +++ b/drivers/media/pci/ngene/ngene-core.c @@ -910,7 +910,6 @@ static int AllocateRingBuffers(struct pci_dev *pci_dev, { dma_addr_t tmp; u32 i, j; - int status = 0; u32 SCListMemSize = pRingBuffer->NumBuffers * ((Buffer2Length != 0) ? (NUM_SCATTER_GATHER_ENTRIES * 2) : NUM_SCATTER_GATHER_ENTRIES) @@ -1010,14 +1009,12 @@ static int AllocateRingBuffers(struct pci_dev *pci_dev, } - return status; + return 0; } static int FillTSIdleBuffer(struct SRingBufferDescriptor *pIdleBuffer, struct SRingBufferDescriptor *pRingBuffer) { - int status = 0; - /* Copy pointer to scatter gather list in TSRingbuffer structure for buffer 2 Load number of buffer @@ -1038,7 +1035,7 @@ static int FillTSIdleBuffer(struct SRingBufferDescriptor *pIdleBuffer, pIdleBuffer->Head->ngeneBuffer.Number_of_entries_1; Cur = Cur->Next; } - return status; + return 0; } static u32 RingBufferSizes[MAX_STREAM] = { diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c index 1f8751379e2..cba7fea3c6c 100644 --- a/drivers/media/usb/cx231xx/cx231xx-video.c +++ b/drivers/media/usb/cx231xx/cx231xx-video.c @@ -208,7 +208,7 @@ static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q, static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb) { struct cx231xx_dmaqueue *dma_q = urb->context; - int i, rc = 1; + int i; unsigned char *p_buffer; u32 bytes_parsed = 0, buffer_size = 0; u8 sav_eav = 0; @@ -299,13 +299,12 @@ static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb) bytes_parsed = 0; } - return rc; + return 1; } static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb) { struct cx231xx_dmaqueue *dma_q = urb->context; - int rc = 1; unsigned char *p_buffer; u32 bytes_parsed = 0, buffer_size = 0; u8 sav_eav = 0; @@ -379,7 +378,7 @@ static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb) bytes_parsed = 0; } - return rc; + return 1; } @@ -1620,7 +1619,7 @@ static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner */ static int cx231xx_v4l2_open(struct file *filp) { - int errCode = 0, radio = 0; + int radio = 0; struct video_device *vdev = video_devdata(filp); struct cx231xx *dev = video_drvdata(filp); struct cx231xx_fh *fh; @@ -1718,7 +1717,7 @@ static int cx231xx_v4l2_open(struct file *filp) mutex_unlock(&dev->lock); v4l2_fh_add(&fh->fh); - return errCode; + return 0; } /* -- 2.46.0