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| author | Steven Price <[email protected]> | 2019-05-17 21:31:47 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-05-18 22:52:26 +0000 |
| commit | 5d59aa8f9ce972b472201aed86e904bb75879ff0 (patch) | |
| tree | 4584b44a49d089b3a991a0f0a2d25f01b8cc2a95 /drivers/pwm/pwm-stm32-lp.c | |
| parent | fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into... (diff) | |
| download | kernel-5d59aa8f9ce972b472201aed86e904bb75879ff0.tar.gz kernel-5d59aa8f9ce972b472201aed86e904bb75879ff0.zip | |
initramfs: don't free a non-existent initrd
Since commit 54c7a8916a88 ("initramfs: free initrd memory if opening
/initrd.image fails"), the kernel has unconditionally attempted to free
the initrd even if it doesn't exist.
In the non-existent case this causes a boot-time splat if
CONFIG_DEBUG_VIRTUAL is enabled due to a call to virt_to_phys() with a
NULL address.
Instead we should check that the initrd actually exists and only attempt
to free it if it does.
Link: http://lkml.kernel.org/r/[email protected]
Fixes: 54c7a8916a88 ("initramfs: free initrd memory if opening /initrd.image fails")
Signed-off-by: Steven Price <[email protected]>
Reported-by: Mark Rutland <[email protected]>
Tested-by: Mark Rutland <[email protected]>
Reviewed-by: Mike Rapoport <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/pwm/pwm-stm32-lp.c')
0 files changed, 0 insertions, 0 deletions