Re: [PATCH] mtd: nand: nandsim: fix error check
From: Marek Vasut
Date: Wed Nov 16 2016 - 11:56:29 EST
On 11/16/2016 08:52 AM, Sudip Mukherjee wrote:
> On Tuesday 15 November 2016 11:42 PM, Marek Vasut wrote:
>> On 11/16/2016 12:09 AM, Sudip Mukherjee wrote:
>>> debugfs_create_dir() and debugfs_create_file() returns NULL on error or
>>> a pointer on success. They do not return the error value with ERR_PTR.
>>> So we should not check the return with IS_ERR_OR_NULL, instead we
>>> should just check for NULL.
>>> Signed-off-by: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
>>> drivers/mtd/nand/nandsim.c | 9 +++------
>>> 1 file changed, 3 insertions(+), 6 deletions(-)
>>> diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
>>> index c76287a..9b0d79a 100644
>>> --- a/drivers/mtd/nand/nandsim.c
>>> +++ b/drivers/mtd/nand/nandsim.c
>>> @@ -525,15 +525,13 @@ static int nandsim_debugfs_create(struct
>>> nandsim *dev)
>>> struct nandsim_debug_info *dbg = &dev->dbg;
>>> struct dentry *dent;
>>> - int err;
>>> + int err = -ENODEV;
>> Why don't you just nuke the err altogether and just return -ENODEV ?
> That was the first version which i made and discarded before sending. I
> will go and find it now.
Why did you discard it ?