[media] cx25821: Replace kmemdup for kstrdup and clean up

Replace kmemdup for kstrdup and cleanup related code.

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/pci/cx25821/cx25821-audio-upstream.c b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
index 42ad84a685423971b93bb78778e7d6f77c00231f..87491ca05ee556fc9b7b4fc4c2112684fc997604 100644 (file)
--- a/drivers/media/pci/cx25821/cx25821-audio-upstream.c
+++ b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
@@ -701,7 +701,6 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
 {
        struct sram_channel *sram_ch;
        int err = 0;
-       int str_length = 0;
 
        if (dev->_audio_is_running) {
                pr_warn("Audio Channel is still running so return!\n");
@@ -730,9 +729,8 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
        _line_size = AUDIO_LINE_SIZE;
 
        if (dev->input_audiofilename) {
-               str_length = strlen(dev->input_audiofilename);
-               dev->_audiofilename = kmemdup(dev->input_audiofilename,
-                                             str_length + 1, GFP_KERNEL);
+               dev->_audiofilename = kstrdup(dev->input_audiofilename,
+                                             GFP_KERNEL);
 
                if (!dev->_audiofilename) {
                        err = -ENOMEM;
@@ -743,9 +741,8 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
                if (strcmp(dev->input_audiofilename, "") == 0)
                        dev->_audiofilename = "/root/audioGOOD.wav";
        } else {
-               str_length = strlen(_defaultAudioName);
-               dev->_audiofilename = kmemdup(_defaultAudioName,
-                                             str_length + 1, GFP_KERNEL);
+               dev->_audiofilename = kstrdup(_defaultAudioName,
+                                             GFP_KERNEL);
 
                if (!dev->_audiofilename) {
                        err = -ENOMEM;