[alsa-devel] [PATCH] ALSA: usb-audio: silence a static checker warning

[Dan Carpenter]

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 at oracle.com>

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;
 	}