Re: [PATCH] treewide: remove redundent IS_ERR() before error code check

On Mon, Jan 6, 2020 at 6:11 AM Masahiro Yamada [off-list ref] wrote:

'PTR_ERR(p) == -E*' is a stronger condition than IS_ERR(p).
Hence, IS_ERR(p) is unneeded.

The semantic patch that generates this commit is as follows:

// <smpl>
@@
expression ptr;
constant error_code;
@@
-IS_ERR(ptr) && (PTR_ERR(ptr) == - error_code)
+PTR_ERR(ptr) == - error_code
// </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

Acked-by: Rafael J. Wysocki <redacted>

for the acpi/scan.c change, but there seems to be a typo in the subject:

s/redundent/redundant/