[PATCH AUTOSEL 5.4 15/58] HID: hid-bigbenff: call hid_hw_stop() in case of error
From: Sasha Levin <sashal@kernel.org>
Date: 2020-03-05 17:20:30
Also in:
lkml, stable
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
From: Hanno Zulla <redacted> [ Upstream commit 976a54d0f4202cb412a3b1fc7f117e1d97db35f3 ] It's required to call hid_hw_stop() once hid_hw_start() was called previously, so error cases need to handle this. Also, hid_hw_close() is not necessary during removal. Signed-off-by: Hanno Zulla <redacted> Signed-off-by: Benjamin Tissoires <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/hid/hid-bigbenff.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index f7e85bacb6889..f8c552b64a899 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c@@ -305,7 +305,6 @@ static void bigben_remove(struct hid_device *hid) struct bigben_device *bigben = hid_get_drvdata(hid); cancel_work_sync(&bigben->worker); - hid_hw_close(hid); hid_hw_stop(hid); }
@@ -350,7 +349,7 @@ static int bigben_probe(struct hid_device *hid, error = input_ff_create_memless(hidinput->input, NULL, hid_bigben_play_effect); if (error) - return error; + goto error_hw_stop; name_sz = strlen(dev_name(&hid->dev)) + strlen(":red:bigben#") + 1;
@@ -360,8 +359,10 @@ static int bigben_probe(struct hid_device *hid, sizeof(struct led_classdev) + name_sz, GFP_KERNEL ); - if (!led) - return -ENOMEM; + if (!led) { + error = -ENOMEM; + goto error_hw_stop; + } name = (void *)(&led[1]); snprintf(name, name_sz, "%s:red:bigben%d",
@@ -375,7 +376,7 @@ static int bigben_probe(struct hid_device *hid, bigben->leds[n] = led; error = devm_led_classdev_register(&hid->dev, led); if (error) - return error; + goto error_hw_stop; } /* initial state: LED1 is on, no rumble effect */
@@ -389,6 +390,10 @@ static int bigben_probe(struct hid_device *hid, hid_info(hid, "LED and force feedback support for BigBen gamepad\n"); return 0; + +error_hw_stop: + hid_hw_stop(hid); + return error; } static __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
--
2.20.1