ALSA: firewire-lib: code refactoring for error path of parser for CIP header

When a parser for CIP header returns -EAGAIN, no extra care is needed
to probe tracepoints event.

This commit adds code refactoring for the error path.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index 9259375caac443b3a3e13e5bef2e424039abb6ba..0b9e643187e2974c468ae0bd395dae923b9c0332 100644 (file)
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -635,12 +635,8 @@ static int parse_ir_ctx_header(struct amdtp_stream *s, unsigned int cycle,
                cip_header = ctx_header + 2;
                err = check_cip_header(s, cip_header, *payload_length,
                                       data_blocks, dbc, syt);
-               if (err < 0) {
-                       if (err != -EAGAIN)
-                               return err;
-
-                       *data_blocks = 0;
-               }
+               if (err < 0)
+                       return err;
        } else {
                cip_header = NULL;
                err = 0;
@@ -654,9 +650,6 @@ static int parse_ir_ctx_header(struct amdtp_stream *s, unsigned int cycle,
                        *dbc = 0;
        }
 
-       if (err < 0)
-               return err;
-
        s->data_block_counter = *dbc;
 
        trace_amdtp_packet(s, cycle, cip_header, *payload_length, *data_blocks,