From b44d419b98fae759b4f746186b1d1c8d01d962f2 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 29 Mar 2018 12:03:19 +0300
Subject: [PATCH] ALSA: usb-audio: silence a static checker warning
Git-commit: b44d419b98fae759b4f746186b1d1c8d01d962f2
Patch-mainline: v4.17-rc1
References: bsc#1121278
We recently made "format" a u64 variable so now static checkers complain
that this shift will wrap around if format is more than 31. I don't
think it makes a difference for runtime, but it's simple to silence the
warning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/usb/format.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/usb/format.c b/sound/usb/format.c
index edbe67eeddfa..49e7ec6d2399 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -55,7 +55,7 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
sample_width = fmt->bBitResolution;
sample_bytes = fmt->bSubframeSize;
- format = 1 << format;
+ format = 1ULL << format;
break;
}
--
2.20.1