Le 27/06/2023 à 14:08, Dan Carpenter a écrit :
On Tue, Jun 27, 2023 at 01:59:20PM +0200, Andi Shyti wrote:
Hi Dan,
On Tue, Jun 27, 2023 at 10:12:36AM +0300, Dan Carpenter wrote:
The "ret" variable is uninitialized. It was the "p2wi->rstc" variable
that was intended. We can also use the %pe string format to print the
error code name instead of just the number.
Fixes: 75ff8a340a81 ("i2c: sun6i-p2wi: Use devm_clk_get_enabled()")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-sun6i-p2wi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-sun6i-p2wi.c b/drivers/i2c/busses/i2c-sun6i-p2wi.c
index ad8270cdbd3e..fa6020dced59 100644
--- a/drivers/i2c/busses/i2c-sun6i-p2wi.c
+++ b/drivers/i2c/busses/i2c-sun6i-p2wi.c
@@ -250,7 +250,8 @@ static int p2wi_probe(struct platform_device *pdev)
p2wi->rstc = devm_reset_control_get_exclusive(dev, NULL);
if (IS_ERR(p2wi->rstc)) {
- dev_err(dev, "failed to retrieve reset controller: %d\n", ret);
+ dev_err(dev, "failed to retrieve reset controller: %pe\n",
+ p2wi->rstc);
Yes, good catch! Thanks! But I think we want to print the error
value here, so I think it should be:
- dev_err(dev, "failed to retrieve reset controller: %d\n", ret);
+ dev_err(dev, "failed to retrieve reset controller: %d\n",
+ PTR_ERR(p2wi->rstc));
The %pe which I changed it to is a cool new thing that prints:
failed to retrieve reset controller: -EINVAL\n
We should create a similar %e printk format that works for ints instead
of error pointers. But instead of that you have people who cast error
codes to pointers just to get the %pe functionality. And other people
who make suggestions (this is the catagory that I'm in) but are too lazy
to do the actual work.
Hi Dan,
why not switch to dev_err_probe()?
CJ
regards,
dan carpenter
