[igt-dev] [PATCH i-g-t] lib/igt_kmod: Fix uninitialized variable during module unload

[Matt Roper <matthew.d.roper@intel.com>]

When unloading a module with no holders, the 'err' variable is checked
without ever being initialized.

Noticed due to sporadic failures in
igt@xe_module_load@reload-no-display, although other tests may also have
been impacted.

Fixes: 5d4730e7f ("lib/igt_kmod: Allow some leeway in igt_kmod_unload_r")
Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 lib/igt_kmod.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/igt_kmod.c b/lib/igt_kmod.c
index e967c9bcd..250ab2107 100644
--- a/lib/igt_kmod.c
+++ b/lib/igt_kmod.c
@@ -263,7 +263,7 @@ static int igt_kmod_unload_r(struct kmod_module *kmod, unsigned int flags)
 #define MAX_TRIES	20
 #define SLEEP_DURATION	500000
 	struct kmod_list *holders, *pos;
-	int err, tries;
+	int err = 0, tries;
 	const char *mod_name = kmod_module_get_name(kmod);
 
 	if (kmod_module_get_initstate(kmod) == KMOD_MODULE_BUILTIN)
-- 
2.41.0