Commit graph

3 commits

Author SHA1 Message Date
Kunwu Chan
ab4e61d874 powerpc/imc-pmu: Add a null pointer check in update_events_in_group()
[ Upstream commit 0a233867a39078ebb0f575e2948593bbff5826b3 ]

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.

Fixes: 885dcd709ba9 ("powerpc/perf: Add nest IMC PMU support")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231126093719.1440305-1-chentao@kylinos.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:12:20 +01:00
Sebastian Andrzej Siewior
1045faad84 powerpc/imc-pmu: Use the correct spinlock initializer.
[ Upstream commit 007240d59c11f87ac4f6cfc6a1d116630b6b634c ]

The macro __SPIN_LOCK_INITIALIZER() is implementation specific. Users
that desire to initialize a spinlock in a struct must use
__SPIN_LOCK_UNLOCKED().

Use __SPIN_LOCK_UNLOCKED() for the spinlock_t in imc_global_refc.

Fixes: 76d588dddc459 ("powerpc/imc-pmu: Fix use of mutex in IRQs disabled section")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230309134831.Nz12nqsU@linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 11:43:06 +01:00
Gabriel2392
7ed7ee9edf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00