diff options
| author | Pan Bian <bianpan2016@163.com> | 2016-12-03 16:56:49 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-11 09:11:39 +0100 |
| commit | 5b11ebedd6a8bb4271b796e498cd15c0fe1133b6 (patch) | |
| tree | c0b0c61921982c62c49ec4824616a646409237dd /drivers/extcon | |
| parent | 488debb9971bc7d0edd6d8080ba78ca02a04f6c4 (diff) | |
| download | linux-5b11ebedd6a8bb4271b796e498cd15c0fe1133b6.tar.bz2 | |
extcon: return error code on failure
Function get_zeroed_page() returns a NULL pointer if there is no enough
memory. In function extcon_sync(), it returns 0 if the call to
get_zeroed_page() fails. The return value 0 indicates success in the
context, which is incosistent with the execution status. This patch
fixes the bug by returning -ENOMEM.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188611
Signed-off-by: Pan Bian <bianpan2016@163.com>
Fixes: a580982f0836e
Cc: stable <stable@vger.kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 78298460d168..7c1e3a7b14e0 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -453,7 +453,7 @@ int extcon_sync(struct extcon_dev *edev, unsigned int id) dev_err(&edev->dev, "out of memory in extcon_set_state\n"); kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE); - return 0; + return -ENOMEM; } length = name_show(&edev->dev, NULL, prop_buf); |