mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-04-14 09:57:39 +02:00
f775413ffe
commitfa4e7a6fa1upstream. It's been reported that the recent kernel can't probe the PCM devices on Roland VS-100 properly, and it turned out to be a regression by the recent addition of the bit shift range check for the format bits. In the old code, we just did bit-shift and it resulted in zero, which is then corrected to the standard PCM format, while the new code explicitly returns an error in such a case. For addressing the regression, relax the check and fallback to the standard PCM type (with the info output). Fixes:43d5ca88df("ALSA: usb-audio: Fix potential out-of-bounds shift") Cc: <stable@vger.kernel.org> Link: https://bugzilla.kernel.org/show_bug.cgi?id=217084 Link: https://lore.kernel.org/r/20230324075005.19403-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>