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From e2353e7c13808e47efb844f8fb10b7aa2142e619 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Fri, 13 Mar 2015 21:10:13 -0500
Subject: [PATCH] gpt-auto-generator: allow type check to fail
add_mount() is OK with unknow file type, but we have to initalize
the variable to NULL not to pass garbage on error.
(cherry picked from commit a0b1209c4a59754f428894e0485413542da50014)
---
src/gpt-auto-generator/gpt-auto-generator.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/src/gpt-auto-generator/gpt-auto-generator.c b/src/gpt-auto-generator/gpt-auto-generator.c
index cceeeb845..00a2141a5 100644
--- a/src/gpt-auto-generator/gpt-auto-generator.c
+++ b/src/gpt-auto-generator/gpt-auto-generator.c
@@ -291,7 +291,7 @@ static int probe_and_add_mount(
const char *post) {
_cleanup_blkid_free_probe_ blkid_probe b = NULL;
- const char *fstype;
+ const char *fstype = NULL;
int r;
assert(id);
@@ -324,14 +324,11 @@ static int probe_and_add_mount(
r = blkid_do_safeprobe(b);
if (r == -2 || r == 1) /* no result or uncertain */
return 0;
- else if (r != 0) {
- if (errno == 0)
- errno = EIO;
- log_error_errno(errno, "Failed to probe %s: %m", what);
- return -errno;
- }
+ else if (r != 0)
+ return log_error_errno(errno ?: EIO, "Failed to probe %s: %m", what);
- blkid_probe_lookup_value(b, "TYPE", &fstype, NULL);
+ /* add_mount is OK with fstype being NULL. */
+ (void) blkid_probe_lookup_value(b, "TYPE", &fstype, NULL);
return add_mount(
id,