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Merge 5.10.6 into android12-5.10

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Changes in 5.10.6
	Revert "drm/amd/display: Fix memory leaks in S3 resume"
	Revert "mtd: spinand: Fix OOB read"
	rtc: pcf2127: move watchdog initialisation to a separate function
	rtc: pcf2127: only use watchdog when explicitly available
	dt-bindings: rtc: add reset-source property
	kdev_t: always inline major/minor helper functions
	Bluetooth: Fix attempting to set RPA timeout when unsupported
	ALSA: hda/realtek - Modify Dell platform name
	ALSA: hda/hdmi: Fix incorrect mutex unlock in silent_stream_disable()
	drm/i915/tgl: Fix Combo PHY DPLL fractional divider for 38.4MHz ref clock
	scsi: ufs: Allow an error return value from ->device_reset()
	scsi: ufs: Re-enable WriteBooster after device reset
	RDMA/core: remove use of dma_virt_ops
	RDMA/siw,rxe: Make emulated devices virtual in the device tree
	fuse: fix bad inode
	perf: Break deadlock involving exec_update_mutex
	rwsem: Implement down_read_killable_nested
	rwsem: Implement down_read_interruptible
	exec: Transform exec_update_mutex into a rw_semaphore
	mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start
	Linux 5.10.6

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id4c57a151a1e8f2162163d2337b6055f04edbe9b
This commit is contained in:
Greg Kroah-Hartman
2021-01-11 10:56:52 +01:00
parent cb5a049748 5650152dda
commit 0290a41d05
45 changed files with 362 additions and 256 deletions
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6
kernel/fork.c
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@@ -1225,7 +1225,7 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
struct mm_struct *mm;
int err;
err = mutex_lock_killable(&task->signal->exec_update_mutex);
err = down_read_killable(&task->signal->exec_update_lock);
if (err)
return ERR_PTR(err);
@@ -1235,7 +1235,7 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
mmput(mm);
mm = ERR_PTR(-EACCES);
}
mutex_unlock(&task->signal->exec_update_mutex);
up_read(&task->signal->exec_update_lock);
return mm;
}
@@ -1595,7 +1595,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
sig->oom_score_adj_min = current->signal->oom_score_adj_min;
mutex_init(&sig->cred_guard_mutex);
mutex_init(&sig->exec_update_mutex);
init_rwsem(&sig->exec_update_lock);
return 0;
}