From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 777d8ae56da18fb6440acd941edb3597c1b02bf0 ]
devm_kcalloc() returns NULL, it never returns error pointers. In the current code we would return PTR_ERR(NULL) which is success, instead of returning the -ENOMEM error code.
Fixes: a0a1a1ba3032 ("rtc: sysfs: facilitate attribute add to rtc device") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/rtc/rtc-sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c index f1ff30ade5343..9746c32eee2eb 100644 --- a/drivers/rtc/rtc-sysfs.c +++ b/drivers/rtc/rtc-sysfs.c @@ -338,8 +338,8 @@ int rtc_add_groups(struct rtc_device *rtc, const struct attribute_group **grps)
new_cnt = old_cnt + add_cnt + 1; groups = devm_kcalloc(&rtc->dev, new_cnt, sizeof(*groups), GFP_KERNEL); - if (IS_ERR_OR_NULL(groups)) - return PTR_ERR(groups); + if (!groups) + return -ENOMEM; memcpy(groups, rtc->dev.groups, old_cnt * sizeof(*groups)); memcpy(groups + old_cnt, grps, add_cnt * sizeof(*groups)); groups[old_cnt + add_cnt] = NULL;