Messages in this thread Patch in this message | | | From | Peter Senna Tschudin <> | Subject | [PATCH 5/14] drivers/media/pci/cx25821/cx25821-video-upstream.c: fix error return code | Date | Thu, 6 Sep 2012 17:23:56 +0200 |
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From: Peter Senna Tschudin <peter.senna@gmail.com>
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; }
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
--- drivers/media/pci/cx25821/cx25821-video-upstream.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream.c b/drivers/media/pci/cx25821/cx25821-video-upstream.c index 52c13e0..b41e57b 100644 --- a/drivers/media/pci/cx25821/cx25821-video-upstream.c +++ b/drivers/media/pci/cx25821/cx25821-video-upstream.c @@ -753,7 +753,6 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select, { struct sram_channel *sram_ch; u32 tmp; - int retval = 0; int err = 0; int data_frame_size = 0; int risc_buffer_size = 0; @@ -796,15 +795,19 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select, dev->_filename = kmemdup(dev->input_filename, str_length + 1, GFP_KERNEL); - if (!dev->_filename) + if (!dev->_filename) { + err = -ENOENT; goto error; + } } else { str_length = strlen(dev->_defaultname); dev->_filename = kmemdup(dev->_defaultname, str_length + 1, GFP_KERNEL); - if (!dev->_filename) + if (!dev->_filename) { + err = -ENOENT; goto error; + } } /* Default if filename is empty string */ @@ -828,7 +831,7 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select, dev->_line_size = (dev->_pixel_format == PIXEL_FRMT_422) ? (WIDTH_D1 * 2) : (WIDTH_D1 * 3) / 2; - retval = cx25821_sram_channel_setup_upstream(dev, sram_ch, + err = cx25821_sram_channel_setup_upstream(dev, sram_ch, dev->_line_size, 0); /* setup fifo + format */ @@ -838,8 +841,8 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select, dev->upstream_databuf_size = data_frame_size * 2; /* Allocating buffers and prepare RISC program */ - retval = cx25821_upstream_buffer_prepare(dev, sram_ch, dev->_line_size); - if (retval < 0) { + err = cx25821_upstream_buffer_prepare(dev, sram_ch, dev->_line_size); + if (err < 0) { pr_err("%s: Failed to set up Video upstream buffers!\n", dev->name); goto error;
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