drivers/base/swnode.c · f4747b9c68b8864cac32cddc45fdcfdfafb3397c · Tobias Schramm / linux-pinebook-pro

6 years ago

drivers: base: swnode: check if swnode is NULL before dereferencing it · f4747b9c

Colin Ian King authored 6 years ago

The to_software_mode() macro can potentially return NULL, so also add
a NULL check on swnode before dereferencing it to avoid any NULL
pointer dereferences.

Detected by CoverityScan, CID#1476052 ("Explicit null dereferenced")

Fixes: 59abd836 (drivers: base: Introducing software nodes to the firmware node framework)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

f4747b9c

History

drivers: base: swnode: check if swnode is NULL before dereferencing it

Colin Ian King authored 6 years ago

The to_software_mode() macro can potentially return NULL, so also add
a NULL check on swnode before dereferencing it to avoid any NULL
pointer dereferences.

Detected by CoverityScan, CID#1476052 ("Explicit null dereferenced")

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