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| author |   Axel Lin <axel.lin@ingics.com> | 2016-09-11 12:09:01 +0800 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2016-09-19 14:42:22 +0200 |
| commit | 7ee2eaa3641827a9ecdffa190cde31846024d2e3 (patch) | |
| tree | 7c6bdf3921858ee77cbe7c63a7ccc62843d7383e /drivers/hid | |
| parent | HID: microsoft: Add Surface 4 type cover pro 4 (JP) (diff) | |
| download | linux-dev-7ee2eaa3641827a9ecdffa190cde31846024d2e3.tar.xz linux-dev-7ee2eaa3641827a9ecdffa190cde31846024d2e3.zip | |
HID: alps: Fix memory leak
A kfree(readbuf) call was missed if hid_hw_raw_request() fails, fix it.
Also avoid mixing direct return with goto in the error paths.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-alps.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c index 048befde295a..2808da9ed9c8 100644 --- a/drivers/hid/hid-alps.c +++ b/drivers/hid/hid-alps.c @@ -139,8 +139,8 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address, if (read_flag) { readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); if (!readbuf) { - kfree(input); - return -ENOMEM; + ret = -ENOMEM; + goto exit; } ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, @@ -149,6 +149,7 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address, if (ret < 0) { dev_err(&hdev->dev, "failed read register (%d)\n", ret); + kfree(readbuf); goto exit; } |