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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-16 17:23:55 +08:00
linux-next/sound
Nathan Chancellor 9a7b7ec3c6 ALSA: usb-audio: scarlett2: Fix for loop increment in scarlett2_usb_get_config
Clang warns:

sound/usb/mixer_scarlett_gen2.c:1189:32: warning: expression result
unused [-Wunused-value]
                        for (i = 0; i < count; i++, (u16 *)buf++)
                                                    ^      ~~~~~
1 warning generated.

It appears the intention was to cast the void pointer to a u16 pointer
so that the data could be iterated through like an array of u16 values.
However, the cast happens after the increment because a cast is an
rvalue, whereas the post-increment operator only works on lvalues, so
the loop does not iterate as expected. This is not a bug in practice
because count is not greater than one at the moment but this could
change in the future so this should be fixed.

Replace the cast with a temporary variable of the proper type, which is
less error prone and fixes the iteration. Do the same thing for the
'u8 *' below this if block.

Fixes: ac34df733d ("ALSA: usb-audio: scarlett2: Update get_config to do endian conversion")
Link: https://github.com/ClangBuiltLinux/linux/issues/1408
Acked-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20210627051202.1888250-1-nathan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-07-01 19:11:30 +02:00
..
ac97 ALSA: ac97: fix PM reference leak in ac97_bus_remove() 2021-05-25 08:59:08 +02:00
aoa ALSA: aoa: remove unnecessary oom message 2021-06-17 17:31:38 +02:00
arm ALSA: arm: Remove unnecessary variables 2021-06-10 09:51:21 +02:00
atmel
core ASoC: Updates for v5.14 2021-07-01 08:36:12 +02:00
drivers ALSA: serial: Fix assignment in if condition 2021-06-09 17:30:34 +02:00
firewire ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found 2021-06-25 09:38:11 +02:00
hda ALSA: hda: Add AlderLake-M PCI ID 2021-05-30 09:33:08 +02:00
i2c ALSA: i2c: tea6330t: Remove redundant initialization of variable err 2021-06-12 09:32:14 +02:00
isa ASoC: Fixes for v5.13 2021-06-24 10:02:45 +02:00
mips ALSA: n64: check return value after calling platform_get_resource() 2021-06-12 09:31:13 +02:00
oss sound/oss/dmasound: Remove superfluous "break" 2021-05-27 08:24:23 +02:00
parisc ALSA: parisc: Fix assignment in if condition 2021-06-09 17:30:39 +02:00
pci ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8 2021-07-01 19:08:29 +02:00
pcmcia ALSA: pcmcia: Fix assignment in if condition 2021-06-09 17:30:28 +02:00
ppc ALSA: ppc: fix error return code in snd_pmac_probe() 2021-06-16 08:52:29 +02:00
sh module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
soc ASoC: Updates for v5.14 2021-07-01 08:36:12 +02:00
sparc ALSA: sparc: Fix assignment in if condition 2021-06-09 17:30:29 +02:00
spi
synth ALSA: synth: Fix assignment in if condition 2021-06-09 17:30:35 +02:00
usb ALSA: usb-audio: scarlett2: Fix for loop increment in scarlett2_usb_get_config 2021-07-01 19:11:30 +02:00
virtio ALSA: virtio: fix kernel-doc 2021-04-27 08:39:39 +02:00
x86 module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
xen module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
ac97_bus.c
Kconfig ALSA: virtio: add virtio sound driver 2021-03-07 09:07:16 +01:00
last.c
Makefile ALSA: virtio: add virtio sound driver 2021-03-07 09:07:16 +01:00
sound_core.c