From: Cássio Gabriel Date: Tue, 24 Mar 2026 19:59:41 +0000 (-0300) Subject: ALSA: seq_oss: return full count for successful SEQ_FULLSIZE writes X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bbc6c0dda54fc0ad8f8aed0b796c23e186e1a188;p=thirdparty%2Flinux.git ALSA: seq_oss: return full count for successful SEQ_FULLSIZE writes snd_seq_oss_write() currently returns the raw load_patch() callback result for SEQ_FULLSIZE events. That callback is documented as returning 0 on success and -errno on failure, but snd_seq_oss_write() is the file write path and should report the number of user bytes consumed on success. Some in-tree backends also return backend-specific positive values, which can still be shorter than the original write size. Return the full byte count for successful SEQ_FULLSIZE writes. Preserve negative errors and convert any nonnegative completion to the original count. Cc: stable@vger.kernel.org Signed-off-by: Cássio Gabriel Link: https://patch.msgid.link/20260324-alsa-seq-oss-fullsize-write-return-v1-1-66d448510538@gmail.com Signed-off-by: Takashi Iwai --- diff --git a/sound/core/seq/oss/seq_oss_rw.c b/sound/core/seq/oss/seq_oss_rw.c index 8a142fd54a190..307ef98c44c7b 100644 --- a/sound/core/seq/oss/seq_oss_rw.c +++ b/sound/core/seq/oss/seq_oss_rw.c @@ -101,9 +101,9 @@ snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, break; } fmt = (*(unsigned short *)rec.c) & 0xffff; - /* FIXME the return value isn't correct */ - return snd_seq_oss_synth_load_patch(dp, rec.s.dev, - fmt, buf, 0, count); + err = snd_seq_oss_synth_load_patch(dp, rec.s.dev, + fmt, buf, 0, count); + return err < 0 ? err : count; } if (ev_is_long(&rec)) { /* extended code */