| Message ID | 20201112144936.54776-1-yuehaibing@huawei.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: macb: Fix passing zero to 'PTR_ERR' | expand |
| Context | Check | Description |
|---|---|---|
| netdev/cover_letter | success | Link |
| netdev/fixes_present | success | Link |
| netdev/patch_count | success | Link |
| netdev/tree_selection | success | Guessed tree name to be net-next |
| netdev/subject_prefix | warning | Target tree name not specified in the subject |
| netdev/source_inline | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Link |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/build_32bit | success | Errors and warnings before: 57 this patch: 57 |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/verify_fixes | success | Link |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 21 lines checked |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 57 this patch: 57 |
| netdev/header_inline | success | Link |
| netdev/stable | success | Stable not CCed |
On Thu, 12 Nov 2020 22:49:36 +0800 YueHaibing wrote: > Check PTR_ERR with IS_ERR to fix this. > > Fixes: cd5afa91f078 ("net: macb: Add null check for PCLK and HCLK") > Signed-off-by: YueHaibing <yuehaibing@huawei.com> Looks like a cleanup PTR_ERR() should return 0 for NULL AFAICS. Applied to net-next, thanks!
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index 51f866288582..7b1d195787dc 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -3711,19 +3711,13 @@ static int macb_clk_init(struct platform_device *pdev, struct clk **pclk, } if (IS_ERR_OR_NULL(*pclk)) { - err = PTR_ERR(*pclk); - if (!err) - err = -ENODEV; - + err = IS_ERR(*pclk) ? PTR_ERR(*pclk) : -ENODEV; dev_err(&pdev->dev, "failed to get macb_clk (%d)\n", err); return err; } if (IS_ERR_OR_NULL(*hclk)) { - err = PTR_ERR(*hclk); - if (!err) - err = -ENODEV; - + err = IS_ERR(*hclk) ? PTR_ERR(*hclk) : -ENODEV; dev_err(&pdev->dev, "failed to get hclk (%d)\n", err); return err; }
Check PTR_ERR with IS_ERR to fix this. Fixes: cd5afa91f078 ("net: macb: Add null check for PCLK and HCLK") Signed-off-by: YueHaibing <yuehaibing@huawei.com> --- drivers/net/ethernet/cadence/macb_main.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)