[PATCH] ALSA: ppc: remove redundant checks in PS3 driver probe

Leonard Goehrs l.goehrs at pengutronix.de
Sat Nov 28 02:22:59 AEDT 2020


The check for the FW_FEATURE_PS3_LV1 firmware feature is already performed
in ps3_system_bus_init() before registering the driver. So if the probe
function is actually used, this feature is already known to be available.

The check for the match id is also superfluous; the condition is always
true because the bus' match function (ps3_system_bus_match()) only
considers this driver for devices having:
dev->match_id == snd_ps3_bus_driver_info.match_id.

Suggested-by: Geert Uytterhoeven <geert at linux-m68k.org>
Signed-off-by: Leonard Goehrs <l.goehrs at pengutronix.de>
---
 sound/ppc/snd_ps3.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/sound/ppc/snd_ps3.c b/sound/ppc/snd_ps3.c
index 58bb49fff184..b6e4aa3df870 100644
--- a/sound/ppc/snd_ps3.c
+++ b/sound/ppc/snd_ps3.c
@@ -896,11 +896,6 @@ static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
 	u64 lpar_addr, lpar_size;
 	static u64 dummy_mask;
 
-	if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
-		return -ENODEV;
-	if (WARN_ON(dev->match_id != PS3_MATCH_ID_SOUND))
-		return -ENODEV;
-
 	the_card.ps3_dev = dev;
 
 	ret = ps3_open_hv_device(dev);
-- 
2.20.1



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