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perf target: str_error_r() always returns the buffer it receives

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So no need for checking if it uses the strerror_r() GNU variant error
reporting mechanism, i.e. if it returns a pointer to a immutable string
internal to glibc.

Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Fixes: c8b5f2c96d ("tools: Introduce str_error_r()")
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-07-29 11:54:35 -03:00
commit ce92834407
1 changed files with 1 additions and 5 deletions
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6
tools/perf/util/target.c
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@ -122,11 +122,7 @@ int target__strerror(struct target *target, int errnum,
BUG_ON(buflen == 0);
if (errnum >= 0) {
const char *err = str_error_r(errnum, buf, buflen);
if (err != buf)
scnprintf(buf, buflen, "%s", err);
str_error_r(errnum, buf, buflen);
return 0;
}