[PATCH] libkmod: assign values to variables to fix warnings

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libkmod/libkmod.c: In function 'kmod_lookup_alias_is_builtin':
./shared/util.h:73:9: warning: 'line' may be used uninitialized in this function [-Wmaybe-uninitialized]
         free(*(void**) p);
         ^~~~~~~~~~~~~~~~~
libkmod/libkmod.c:581:23: note: 'line' was declared here
  _cleanup_free_ char *line;
                       ^~~~
In file included from libkmod/libkmod-module.c:42:0:
libkmod/libkmod-module.c: In function 'kmod_module_probe_insert_module':
./shared/util.h:73:9: warning: 'cmd' may be used uninitialized in this function [-Wmaybe-uninitialized]
         free(*(void**) p);
         ^~~~~~~~~~~~~~~~~
libkmod/libkmod-module.c:1009:23: note: 'cmd' was declared here
  _cleanup_free_ char *cmd;

---
 libkmod/libkmod-module.c | 2 +-
 libkmod/libkmod.c        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index 76a6dc3..2e973b5 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -1006,7 +1006,7 @@ static int module_do_install_commands(struct kmod_module *mod,
 {
 	const char *command = kmod_module_get_install_commands(mod);
 	char *p;
-	_cleanup_free_ char *cmd;
+	_cleanup_free_ char *cmd = NULL;
 	int err;
 	size_t cmdlen, options_len, varlen;
 
diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c
index 43423d6..66e658c 100644
--- a/libkmod/libkmod.c
+++ b/libkmod/libkmod.c
@@ -578,7 +578,7 @@ finish:
 
 bool kmod_lookup_alias_is_builtin(struct kmod_ctx *ctx, const char *name)
 {
-	_cleanup_free_ char *line;
+	_cleanup_free_ char *line = NULL;
 
 	line = lookup_builtin_file(ctx, name);
 
-- 
2.23.0




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