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usb: mtu3: Fix a double-dereference splat in TP_printk

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This splat is reporting a double-dereference that can result in garbage
 traces being dumped due to the possibility of the TP_printk() being
 executed without the benefit of main memory being present.  The fix is to
 move the extra dereference from TP_printk() time to TP_fast_assign() time.
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Merge tag 'usb-mtu3.2026.10.06a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull tracing fix from Paul McKenney:
 "Fix a double-dereference splat in TP_printk in usb mtu3. This was a
  pre-existing bug that can corrupt tracing output, but which was
  exposed this cycle by additional checking that was added to the
  tracing subsystem.

  This splat is reporting a double-dereference that can result in
  garbage traces being dumped due to the possibility of the TP_printk()
  being executed without the benefit of main memory being present.

  The fix is to move the extra dereference from TP_printk() time to
  TP_fast_assign() time"

* tag 'usb-mtu3.2026.10.06a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  usb: mtu3: Fix double dereference in TP_printk
This commit is contained in:
Linus Torvalds 2026-10-08 06:36:57 +02:00
commit 8fc6e59488
1 changed files with 3 additions and 1 deletions
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