[PATCH] mISDN: use kstrdup() in dsp_pipeline_build

From: Geliang Tang
Date: Sat Oct 10 2015 - 05:34:17 EST


Use kstrdup instead of strlen-kmalloc-strcpy.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxx>
---
drivers/isdn/mISDN/dsp_pipeline.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index 8b1a66c..c60722d 100644
--- a/drivers/isdn/mISDN/dsp_pipeline.c
+++ b/drivers/isdn/mISDN/dsp_pipeline.c
@@ -235,7 +235,7 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline)

int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
{
- int len, incomplete = 0, found = 0;
+ int incomplete = 0, found = 0;
char *dup, *tok, *name, *args;
struct dsp_element_entry *entry, *n;
struct dsp_pipeline_entry *pipeline_entry;
@@ -250,14 +250,9 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
if (!cfg)
return 0;

- len = strlen(cfg);
- if (!len)
- return 0;
-
- dup = kmalloc(len + 1, GFP_ATOMIC);
+ dup = kstrdup(cfg, GFP_ATOMIC);
if (!dup)
return 0;
- strcpy(dup, cfg);
while ((tok = strsep(&dup, "|"))) {
if (!strlen(tok))
continue;
--
1.9.1


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