[1/3] Bluetooth: btqcomsmd: Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König March 11, 2024, 9:49 p.m. UTC

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <[e-mail]>
---
 drivers/bluetooth/btqcomsmd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

[e-mail] March 11, 2024, 10:32 p.m. UTC | #1

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Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=834459

---Test result---

Test Summary:
CheckPatch                    PASS      1.35 seconds
GitLint                       PASS      0.57 seconds
SubjectPrefix                 PASS      0.16 seconds
BuildKernel                   PASS      28.56 seconds
CheckAllWarning               PASS      31.80 seconds
CheckSparse                   PASS      38.05 seconds
CheckSmatch                   PASS      100.92 seconds
BuildKernel32                 PASS      27.96 seconds
TestRunnerSetup               PASS      527.76 seconds
TestRunner_l2cap-tester       PASS      20.27 seconds
TestRunner_iso-tester         PASS      30.53 seconds
TestRunner_bnep-tester        PASS      4.71 seconds
TestRunner_mgmt-tester        PASS      112.60 seconds
TestRunner_rfcomm-tester      PASS      7.34 seconds
TestRunner_sco-tester         PASS      14.88 seconds
TestRunner_ioctl-tester       PASS      7.75 seconds
TestRunner_mesh-tester        PASS      7.51 seconds
TestRunner_smp-tester         PASS      6.82 seconds
TestRunner_userchan-tester    PASS      5.17 seconds
IncrementalBuild              PASS      35.48 seconds



---
Regards,
Linux Bluetooth

Patch

diff --git a/drivers/bluetooth/btqcomsmd.c b/drivers/bluetooth/btqcomsmd.c
index 11c7e04bf394..88dbb2f3fabf 100644
--- a/drivers/bluetooth/btqcomsmd.c
+++ b/drivers/bluetooth/btqcomsmd.c
@@ -197,7 +197,7 @@  static int btqcomsmd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int btqcomsmd_remove(struct platform_device *pdev)
+static void btqcomsmd_remove(struct platform_device *pdev)
 {
 	struct btqcomsmd *btq = platform_get_drvdata(pdev);
 
@@ -206,8 +206,6 @@  static int btqcomsmd_remove(struct platform_device *pdev)
 
 	rpmsg_destroy_ept(btq->cmd_channel);
 	rpmsg_destroy_ept(btq->acl_channel);
-
-	return 0;
 }
 
 static const struct of_device_id btqcomsmd_of_match[] = {
@@ -218,7 +216,7 @@  MODULE_DEVICE_TABLE(of, btqcomsmd_of_match);
 
 static struct platform_driver btqcomsmd_driver = {
 	.probe = btqcomsmd_probe,
-	.remove = btqcomsmd_remove,
+	.remove_new = btqcomsmd_remove,
 	.driver  = {
 		.name  = "btqcomsmd",
 		.of_match_table = btqcomsmd_of_match,