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| author | Sherry Sun <sherry.sun@nxp.com> | 2023-03-23 19:09:23 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-29 10:59:41 +0200 |
| commit | 178e00f36f934a88682d96aa046c1f90cb6f83a7 (patch) | |
| tree | 81df13e09754fd52220589ec0b0550937cbec0f5 /lib/crypto/mpi/mpi-add.c | |
| parent | 9425914f3de6febbd6250395f56c8279676d9c3c (diff) | |
tty: serial: fsl_lpuart: fix crash in lpuart_uport_is_active
For serdev framework, tty->dev is a NULL pointer, lpuart_uport_is_active
calling device_may_wakeup() may cause kernel NULL pointer crash, so here
add the NULL pointer check before using it.
Fixes: 4f5cb8c5e915 ("tty: serial: fsl_lpuart: enable wakeup source for lpuart")
Cc: stable <stable@kernel.org>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20230323110923.24581-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/crypto/mpi/mpi-add.c')
0 files changed, 0 insertions, 0 deletions