Some zlib APIs set the errno in case of an error and return Z_ERRNO. In these cases, errno should not be overwritten by the tarce-cmd zlib wrappers. Suggested-by: Sebastian Andrzej Siewior <sebastian@xxxxxxxxxxxxx> Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@xxxxxxxxx> --- lib/trace-cmd/trace-compress-zlib.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/trace-cmd/trace-compress-zlib.c b/lib/trace-cmd/trace-compress-zlib.c index 41342597..0dfd4f15 100644 --- a/lib/trace-cmd/trace-compress-zlib.c +++ b/lib/trace-cmd/trace-compress-zlib.c @@ -33,6 +33,8 @@ static int zlib_compress(const void *in, int in_bytes, void *out, int out_bytes) case Z_STREAM_ERROR: errno = -EINVAL; break; + case Z_ERRNO: + break; default: errno = -EFAULT; break; @@ -61,6 +63,8 @@ static int zlib_decompress(const void *in, int in_bytes, void *out, int out_byte case Z_DATA_ERROR: errno = -EINVAL; break; + case Z_ERRNO: + break; default: errno = -EFAULT; break; -- 2.34.1
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