ACPICA: Allow multiple backslash prefix in namepaths (d037c5fd) · Commits · e / devices / android_kernel_xiaomi_markw

In a fully qualified namepath, allow multiple backslash prefixes. This can happen because of the use of a double-backslash in strings (since backslash is the escape character) causing confusion. ACPICA BZ 739 Lin Ming. http://www.acpica.org/bugzilla/show_bug.cgi?id=739 Signed-off-by:

Lin Ming <ming.m.lin@intel.com> Signed-off-by:

Bob Moore <robert.moore@intel.com> Signed-off-by:

Len Brown <len.brown@intel.com>

drivers/acpi/namespace/nsutils.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -314,9 +314,15 @@ void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
		*
		* strlen() + 1 covers the first name_seg, which has no path separator
		*/
		if (acpi_ns_valid_root_prefix(next_external_char[0])) {
		if (acpi_ns_valid_root_prefix(*next_external_char)) {
		info->fully_qualified = TRUE;
		next_external_char++;

		/* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */

		while (acpi_ns_valid_root_prefix(*next_external_char)) {
		next_external_char++;
		}
		} else {
		/*
		* Handle Carat prefixes