summaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-06-08 17:42:37 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-09 14:40:48 +0200
commit7c3e8d9df265bd0bdf6e328174cdfba26eb22f1c (patch)
tree1922b3ae5ce8a097b22546dacfc2b35173b427d5 /include
parent8124c8a6b35386f73523d27eacb71b5364a68c4c (diff)
serial: 8250_exar: Avoid NULL pointer dereference at ->exit()
It's possible that during ->exit() the private_data is NULL, for instance when there was no GPIO device instantiated. Due to this we may not dereference it. Add a respective check. Note, for now ->exit() only makes sense when GPIO device was instantiated, that's why we may use the check for entire function. Fixes: 81171e7d31a6 ("serial: 8250_exar: Constify the software nodes") Reported-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Maxim Levitsky <mlevitsk@redhat.com> Link: https://lore.kernel.org/r/20210608144239.12697-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions