Thanks for your advice, I send patch v2 now :) -----邮件原件----- 发件人: Dan Carpenter [mailto:dan.carpenter@xxxxxxxxxx] 发送时间: 2021年6月1日 22:47 收件人: zhengyongjun <zhengyongjun3@xxxxxxxxxx> 抄送: mchehab@xxxxxxxxxx; linux-media@xxxxxxxxxxxxxxx; linux-staging@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; sakari.ailus@xxxxxxxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx 主题: Re: [PATCH -next] media: atomisp: Remove unneeded if-null-free check On Tue, Jun 01, 2021 at 10:20:05PM +0800, Zheng Yongjun wrote: > Eliminate the following coccicheck warning: > > drivers/staging/media/atomisp/pci/sh_css_firmware.c:369:4-10: WARNING: > NULL check before some freeing functions is not needed. > > Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx> > --- > drivers/staging/media/atomisp/pci/sh_css_firmware.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/staging/media/atomisp/pci/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/sh_css_firmware.c > index f4ce8ace9d50..980fc09fcc8b 100644 > --- a/drivers/staging/media/atomisp/pci/sh_css_firmware.c > +++ b/drivers/staging/media/atomisp/pci/sh_css_firmware.c > @@ -365,8 +365,7 @@ void sh_css_unload_firmware(void) > for (i = 0; i < sh_css_num_binaries; i++) { > if (fw_minibuffer[i].name) > kfree((void *)fw_minibuffer[i].name); Change this too. > - if (fw_minibuffer[i].buffer) > - kvfree(fw_minibuffer[i].buffer); > + kvfree(fw_minibuffer[i].buffer); > } > kfree(fw_minibuffer); > fw_minibuffer = NULL; regards, dan carpenter