From eaddb09307494646650e7c7432739ade10bdf56c Mon Sep 17 00:00:00 2001 From: Peter Senna Tschudin Date: Sat, 8 Sep 2012 10:01:58 -0300 Subject: [PATCH] [media] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c: fix error return code 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/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // While here, replace strlen()+kmemdup() to kstrdup(). Signed-off-by: Peter Senna Tschudin Reviewed-by: walter harms Signed-off-by: Mauro Carvalho Chehab --- .../pci/cx25821/cx25821-video-upstream-ch2.c | 30 ++++++++----------- 1 file changed, 12 insertions(+), 18 deletions(-) diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c b/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c index f7a6e6b74199..cf2723c7197f 100644 --- a/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c +++ b/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c @@ -708,11 +708,9 @@ int cx25821_vidupstream_init_ch2(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; - int str_length = 0; if (dev->_is_running_ch2) { pr_info("Video Channel is still running so return!\n"); @@ -748,20 +746,16 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select, risc_buffer_size = dev->_isNTSC_ch2 ? NTSC_RISC_BUF_SIZE : PAL_RISC_BUF_SIZE; - if (dev->input_filename_ch2) { - str_length = strlen(dev->input_filename_ch2); - dev->_filename_ch2 = kmemdup(dev->input_filename_ch2, - str_length + 1, GFP_KERNEL); - - if (!dev->_filename_ch2) - goto error; - } else { - str_length = strlen(dev->_defaultname_ch2); - dev->_filename_ch2 = kmemdup(dev->_defaultname_ch2, - str_length + 1, GFP_KERNEL); + if (dev->input_filename_ch2) + dev->_filename_ch2 = kstrdup(dev->input_filename_ch2, + GFP_KERNEL); + else + dev->_filename_ch2 = kstrdup(dev->_defaultname_ch2, + GFP_KERNEL); - if (!dev->_filename_ch2) - goto error; + if (!dev->_filename_ch2) { + err = -ENOENT; + goto error; } /* Default if filename is empty string */ @@ -777,7 +771,7 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select, } } - retval = cx25821_sram_channel_setup_upstream(dev, sram_ch, + err = cx25821_sram_channel_setup_upstream(dev, sram_ch, dev->_line_size_ch2, 0); /* setup fifo + format */ @@ -787,9 +781,9 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select, dev->upstream_databuf_size_ch2 = data_frame_size * 2; /* Allocating buffers and prepare RISC program */ - retval = cx25821_upstream_buffer_prepare_ch2(dev, sram_ch, + err = cx25821_upstream_buffer_prepare_ch2(dev, sram_ch, dev->_line_size_ch2); - if (retval < 0) { + if (err < 0) { pr_err("%s: Failed to set up Video upstream buffers!\n", dev->name); goto error; -- 2.20.1