From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 29 Mar 2018 09:03:19 +0000 (+0300)
Subject: ALSA: usb-audio: silence a static checker warning
X-Git-Tag: v5.15~8973^2~12^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b44d419b98fae759b4f746186b1d1c8d01d962f2;p=platform%2Fkernel%2Flinux-starfive.git

ALSA: usb-audio: silence a static checker warning

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>
---

diff --git a/sound/usb/format.c b/sound/usb/format.c
index edbe67e..49e7ec6 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;
 	}