This patch changes the driver to avoid the usage of IS_ERR_OR_NULL() macro. This macro can lead to dangerous results, like returning success (0) during a failure scenario (NULL pointer handling).
The case present in this patch has simply be translated to normal check for NULL and if the pointer has an error code. The later case is needed because functions like thermal_zone_get_zone_by_name() could return an ERR_PTR(). Cc: Zhang Rui <[email protected]> Cc: Russell King <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Eduardo Valentin <[email protected]> --- drivers/thermal/thermal_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index f36cd44..d755440 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -388,7 +388,7 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, unsigned long *temp) enum thermal_trip_type type; #endif - if (IS_ERR_OR_NULL(tz)) + if (!tz || IS_ERR(tz)) goto exit; mutex_lock(&tz->lock); -- 1.8.2.1.342.gfa7285d -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
