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xen/xenbus: Convert to use ERR_CAST()

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Use ERR_CAST() as it is designed for casting an error pointer to
another type.

This macro utilizes the __force and __must_check modifiers, which instruct
the compiler to verify for errors at the locations where it is employed.

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Message-ID: <20240829084710.30312-1-shenlichuan@vivo.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Shen Lichuan 2024-08-29 16:47:10 +08:00 committed by Juergen Gross
parent fbe5a6dfe4
commit 3adc73efad
1 changed files with 3 additions and 3 deletions
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6
drivers/xen/xenbus/xenbus_xs.c
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@ -427,12 +427,12 @@ char **xenbus_directory(struct xenbus_transaction t,
path = join(dir, node);
if (IS_ERR(path))
return (char **)path;
return ERR_CAST(path);
strings = xs_single(t, XS_DIRECTORY, path, &len);
kfree(path);
if (IS_ERR(strings))
return (char **)strings;
return ERR_CAST(strings);
return split(strings, len, num);
}
@ -465,7 +465,7 @@ void *xenbus_read(struct xenbus_transaction t,
path = join(dir, node);
if (IS_ERR(path))
return (void *)path;
return ERR_CAST(path);
ret = xs_single(t, XS_READ, path, len);
kfree(path);