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authorGeliang Tang <geliangtang@163.com>2015-10-12 11:19:07 +0300
committerDavid S. Miller <davem@davemloft.net>2015-10-14 04:29:50 +0300
commitc3643885aa8a3c7cff3ba3269337f39361d76f76 (patch)
tree2966f6a46a49d415ca042793185cd49a833fe6e0 /drivers/isdn
parent4bdc3d66147b3a623b32216a45431d0cff005f50 (diff)
downloadlinux-c3643885aa8a3c7cff3ba3269337f39361d76f76.tar.xz
mISDN: use kstrdup() in dsp_pipeline_build
Use kstrdup instead of strlen-kmalloc-strcpy. Remove unneeded NULL test, it will be tested inside kstrdup. Remove 0 length string test, it has been tested in the caller of dsp_pipeline_build. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn')
-rw-r--r--drivers/isdn/mISDN/dsp_pipeline.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index 8b1a66c6ca8a..e72b4e73cd61 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;
@@ -247,17 +247,9 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
if (!list_empty(&pipeline->list))
_dsp_pipeline_destroy(pipeline);
- 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;