Re: [PATCH 1/5] Staging: rtl8723bs: os_dep: Fix assignment in if condition

From: Guilherme T Maeoka
Date: Sat Mar 09 2019 - 14:00:35 EST


Thank you for the review Joe. I'll have that in mind in the next patch.

On 3/9/19, Joe Perches <joe@xxxxxxxxxxx> wrote:
> On Sat, 2019-03-09 at 15:30 -0300, Guilherme Tadashi Maeoka wrote:
>> Fix an assignment in if condition.
>>
>> Signed-off-by: Guilherme Tadashi Maeoka <gui.maeoka@xxxxxxxxx>
>> ---
>> drivers/staging/rtl8723bs/os_dep/osdep_service.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/staging/rtl8723bs/os_dep/osdep_service.c
>> b/drivers/staging/rtl8723bs/os_dep/osdep_service.c
>> index 73b87da15eb2..c7fdcc6bbae3 100644
>> --- a/drivers/staging/rtl8723bs/os_dep/osdep_service.c
>> +++ b/drivers/staging/rtl8723bs/os_dep/osdep_service.c
>> @@ -162,7 +162,9 @@ static int retriveFromFile(char *path, u8 *buf, u32
>> sz)
>> struct file *fp;
>>
>> if (path && buf) {
>> - if (0 == (ret =openFile(&fp, path, O_RDONLY, 0))) {
>> + ret = openFile(&fp, path, O_RDONLY, 0);
>> +
>> + if (ret == 0) {
>> DBG_871X("%s openFile path:%s fp =%p\n", __func__, path , fp);
>>
>> oldfs = get_fs(); set_fs(KERNEL_DS);
>
> More common kernel style would be to rewrite the function
> (and to fix the typo of retrieve) to something like:
>
> static int retrieveFromFile(char *path, u8 *buf, u32 sz)
> {
> int ret;
> mm_segment_t oldfs;
> struct file *fp;
>
> if (!path || !buf) {
> DBG_871X("%s NULL pointer\n", __func__);
> return -EINVAL;
> }
>
> ret = openFile(&fp, path, O_RDONLY, 0);
> if (ret) {
> DBG_871X("%s openFile path:%s Fail, ret:%d\n",
> __func__, path, ret);
> return ret;
> }
>
> DBG_871X("%s openFile path:%s fp =%p\n", __func__, path , fp);
>
> oldfs = get_fs();
> set_fs(KERNEL_DS);
> ret = readFile(fp, buf, sz);
> set_fs(oldfs);
> closeFile(fp);
>
> DBG_871X("%s readFile, ret:%d\n", __func__, ret);
>
> return ret;
> }
>
>
>