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| author |   Stefan Agner <stefan@agner.ch> | 2017-08-02 12:51:29 -0700 |
|---|---|---|
| committer |   Shawn Guo <shawnguo@kernel.org> | 2017-08-05 11:12:20 +0800 |
| commit | 9e01e2d56db23485a75864b6aeee8e443f024ddb (patch) | |
| tree | e2b2fae8eb01460bea5535b88c7e226b41227c37 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | ARM: dts: imx7d-sdb: Put pinctrl_spi4 in the correct location (diff) | |
| download | wireguard-linux-9e01e2d56db23485a75864b6aeee8e443f024ddb.tar.xz wireguard-linux-9e01e2d56db23485a75864b6aeee8e443f024ddb.zip | |
soc: imx: gpcv2: fix regulator deferred probe
If a regulator requests a deferred probe, the power domain gets
initialized twice. This leads to a list double add (without
list debugging the kernel hangs due to the double add later):
WARNING: CPU: 0 PID: 19 at lib/list_debug.c:31 __list_add_valid+0xbc/0xc4
list_add double add: new=c1229754, prev=c12383b4, next=c1229754.
Initialize the power domain after we get the regulator. Also do
not print an error in case the regulator defers probing.
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions