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Use the standard error pointer macro to shorten the code and simplify. Link: https://lkml.kernel.org/r/20250812084045.64218-1-zhao.xichao@vivo.com Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
37 lines
801 B
C
37 lines
801 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/fault-inject.h>
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#include <linux/fault-inject-usercopy.h>
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static struct {
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struct fault_attr attr;
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} fail_usercopy = {
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.attr = FAULT_ATTR_INITIALIZER,
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};
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static int __init setup_fail_usercopy(char *str)
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{
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return setup_fault_attr(&fail_usercopy.attr, str);
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}
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__setup("fail_usercopy=", setup_fail_usercopy);
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#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
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static int __init fail_usercopy_debugfs(void)
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{
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struct dentry *dir;
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dir = fault_create_debugfs_attr("fail_usercopy", NULL,
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&fail_usercopy.attr);
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return PTR_ERR_OR_ZERO(dir);
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}
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late_initcall(fail_usercopy_debugfs);
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#endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */
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bool should_fail_usercopy(void)
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{
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return should_fail(&fail_usercopy.attr, 1);
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}
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EXPORT_SYMBOL_GPL(should_fail_usercopy);
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