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Thu, 25 May 2023 08:31:28 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Cc: Dan Carpenter Subject: [PATCH 2/2] ALSA: ump: Fix parsing of 0xFx command Date: Thu, 25 May 2023 10:31:24 +0200 Message-Id: <20230525083124.15277-2-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230525083124.15277-1-tiwai@suse.de> References: <20230525083124.15277-1-tiwai@suse.de> MIME-Version: 1.0 Message-ID-Hash: T5NGU6LPKYECVOSGEJZ23LZ5GX3VEBUN X-Message-ID-Hash: T5NGU6LPKYECVOSGEJZ23LZ5GX3VEBUN X-MailFrom: tiwai@suse.de X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: The MIDI 1.0 parser retrieved the 0xFx command with a wrong bit shift, resulting in the bogus type. Fix the bit shift size. Fixes: 0b5288f5fe63 ("ALSA: ump: Add legacy raw MIDI support") Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/0fbc0b27-54b8-4cda-800e-37e7a03fed39@kili.mountain Suggested-by: Dan Carpenter Signed-off-by: Takashi Iwai --- sound/core/ump_convert.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/ump_convert.c b/sound/core/ump_convert.c index 164829d3e305..48ab3e1bd62e 100644 --- a/sound/core/ump_convert.c +++ b/sound/core/ump_convert.c @@ -454,7 +454,7 @@ static int do_convert_to_ump(struct snd_ump_endpoint *ump, } if (c & 0x80) { - bytes = cmd_bytes[(c >> 8) & 7]; + bytes = cmd_bytes[(c >> 4) & 7]; cvt->buf[0] = c; cvt->len = 1; cvt->cmd_bytes = bytes;