mm/kmemleak.c: change error at _write when kmemleak is disabled
According to POSIX, EBUSY means that the "device or resource is busy", and this can lead to people thinking that the file `/sys/kernel/debug/kmemleak/` is somehow locked or being used by other process. Change this error code to a more appropriate one. Link: http://lkml.kernel.org/r/20190612155231.19448-1-andrealmeid@collabora.com Signed-off-by: André Almeida <andrealmeid@collabora.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1866,7 +1866,7 @@ static ssize_t kmemleak_write(struct file *file, const char __user *user_buf,
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}
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if (!kmemleak_enabled) {
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ret = -EBUSY;
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ret = -EPERM;
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goto out;
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}
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