[PATCH] acpi: syntaxcheck: nullify pointers to clean up static analysis warnings

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

The fwts_iasl_reassemble call potentially may not set the iasl_stdout,
iasl_stderr and iasl_disassembly pointers, so initialize these to NULL
so that the fwts_text_list_free calls won't hit uninitialized pointer
reads if fwts_iasl_reassemble fails.

Addresses-Coverity: ("Uninitialized pointer read")
Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/acpi/syntaxcheck/syntaxcheck.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/acpi/syntaxcheck/syntaxcheck.c b/src/acpi/syntaxcheck/syntaxcheck.c
index 03a28b2c..8ba1dc2f 100644
--- a/src/acpi/syntaxcheck/syntaxcheck.c
+++ b/src/acpi/syntaxcheck/syntaxcheck.c
@@ -495,7 +495,9 @@ static int syntaxcheck_single_table(
 	int errors = 0;
 	int warnings = 0;
 	int remarks = 0;
-	fwts_list *iasl_stdout, *iasl_stderr, *iasl_disassembly;
+	fwts_list *iasl_stdout = NULL,
+		  *iasl_stderr = NULL,
+		  *iasl_disassembly = NULL;
 
 	if (fwts_iasl_reassemble(fw, info,
 		&iasl_disassembly, &iasl_stdout, &iasl_stderr) != FWTS_OK) {
-- 
2.20.1