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usb: Remove redundant 'flush_workqueue()' calls

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'destroy_workqueue()' already drains the queue before destroying it, so
there is no need to flush it explicitly.

Remove the redundant 'flush_workqueue()' calls.

This was generated with coccinelle:

@@
expression E;
@@
- 	flush_workqueue(E);
	destroy_workqueue(E);

Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Peter Chen <peter.chen@kernel.or> # for chipidea part
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/563123a8117d6cafae3f134e497587bd2b8bb7f4.1636734453.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET 2021-11-12 17:30:16 +01:00 committed by Greg Kroah-Hartman
parent c76ef96fc0
commit f057a1d4f0
5 changed files with 4 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/usb/chipidea/otg.c
View File

@ -255,10 +255,9 @@ int ci_hdrc_otg_init(struct ci_hdrc *ci)
*/ */
void ci_hdrc_otg_destroy(struct ci_hdrc *ci) void ci_hdrc_otg_destroy(struct ci_hdrc *ci)
{ {
if (ci->wq) { if (ci->wq)
flush_workqueue(ci->wq);
destroy_workqueue(ci->wq); destroy_workqueue(ci->wq);
}
/* Disable all OTG irq and clear status */ /* Disable all OTG irq and clear status */
hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS, hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS,
OTGSC_INT_STATUS_BITS); OTGSC_INT_STATUS_BITS);

4
drivers/usb/gadget/udc/mv_udc_core.c
View File

@ -2084,10 +2084,8 @@ static int mv_udc_remove(struct platform_device *pdev)
usb_del_gadget_udc(&udc->gadget); usb_del_gadget_udc(&udc->gadget);
if (udc->qwork) { if (udc->qwork)
flush_workqueue(udc->qwork);
destroy_workqueue(udc->qwork); destroy_workqueue(udc->qwork);
}
/* free memory allocated in probe */ /* free memory allocated in probe */
dma_pool_destroy(udc->dtd_pool); dma_pool_destroy(udc->dtd_pool);

1
drivers/usb/host/u132-hcd.c
View File

@ -3211,7 +3211,6 @@ static void __exit u132_hcd_exit(void)
platform_driver_unregister(&u132_platform_driver); platform_driver_unregister(&u132_platform_driver);
printk(KERN_INFO "u132-hcd driver deregistered\n"); printk(KERN_INFO "u132-hcd driver deregistered\n");
wait_event(u132_hcd_wait, u132_instances == 0); wait_event(u132_hcd_wait, u132_instances == 0);
flush_workqueue(workqueue);
destroy_workqueue(workqueue); destroy_workqueue(workqueue);
} }

5
drivers/usb/phy/phy-mv-usb.c
View File

@ -648,10 +648,8 @@ static int mv_otg_remove(struct platform_device *pdev)
{ {
struct mv_otg *mvotg = platform_get_drvdata(pdev); struct mv_otg *mvotg = platform_get_drvdata(pdev);
if (mvotg->qwork) { if (mvotg->qwork)
flush_workqueue(mvotg->qwork);
destroy_workqueue(mvotg->qwork); destroy_workqueue(mvotg->qwork);
}
mv_otg_disable(mvotg); mv_otg_disable(mvotg);
@ -825,7 +823,6 @@ static int mv_otg_probe(struct platform_device *pdev)
err_disable_clk: err_disable_clk:
mv_otg_disable_internal(mvotg); mv_otg_disable_internal(mvotg);
err_destroy_workqueue: err_destroy_workqueue:
flush_workqueue(mvotg->qwork);
destroy_workqueue(mvotg->qwork); destroy_workqueue(mvotg->qwork);
return retval; return retval;

1
drivers/usb/usbip/usbip_event.c
View File

@ -137,7 +137,6 @@ int usbip_init_eh(void)
void usbip_finish_eh(void) void usbip_finish_eh(void)
{ {
flush_workqueue(usbip_queue);
destroy_workqueue(usbip_queue); destroy_workqueue(usbip_queue);
usbip_queue = NULL; usbip_queue = NULL;
} }