Messages in this thread | | | Subject | Re: [PATCH 1/2] staging: irda: Replace mdelay with usleep_range in stir421x_fw_upload | From | Jia-Ju Bai <> | Date | Wed, 11 Apr 2018 15:17:10 +0800 |
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On 2018/4/11 14:41, Greg KH wrote: > On Wed, Apr 11, 2018 at 09:29:34AM +0800, Jia-Ju Bai wrote: >> stir421x_fw_upload() is never called in atomic context. >> >> The call chain ending up at stir421x_fw_upload() is: >> [1] stir421x_fw_upload() <- stir421x_patch_device() <- irda_usb_probe() >> >> irda_usb_probe() is set as ".probe" in struct usb_driver. >> This function is not called in atomic context. >> >> Despite never getting called from atomic context, stir421x_fw_upload() >> calls mdelay() to busily wait. >> This is not necessary and can be replaced with usleep_range() to >> avoid busy waiting. >> >> This is found by a static analysis tool named DCNS written by myself. >> And I also manually check it. >> >> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> >> --- >> drivers/staging/irda/drivers/irda-usb.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) > Please, at the very least, work off of Linus's tree. There is no > drivers/staging/irda/ anymore :) >
Okay, sorry. Could you please recommend me a right tree or its git address?
Best wishes, Jia-Ju Bai
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