diff options
| author | Juergen Gross <[email protected]> | 2021-04-23 07:40:38 +0200 |
|---|---|---|
| committer | Juergen Gross <[email protected]> | 2021-05-10 09:32:00 +0200 |
| commit | 970655aa9b42461f8394e4457307005bdeee14d9 (patch) | |
| tree | 3181bb4b00415833f5f2d3c39548bbd3189910d2 /drivers/fpga/fpga-bridge.c | |
| parent | 6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff) | |
xen/gntdev: fix gntdev_mmap() error exit path
Commit d3eeb1d77c5d0af ("xen/gntdev: use mmu_interval_notifier_insert")
introduced an error in gntdev_mmap(): in case the call of
mmu_interval_notifier_insert_locked() fails the exit path should not
call mmu_interval_notifier_remove(), as this might result in NULL
dereferences.
One reason for failure is e.g. a signal pending for the running
process.
Fixes: d3eeb1d77c5d0af ("xen/gntdev: use mmu_interval_notifier_insert")
Cc: [email protected]
Reported-by: Marek Marczykowski-Górecki <[email protected]>
Tested-by: Marek Marczykowski-Górecki <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>
Reviewed-by: Luca Fancellu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions